diff --git a/CMakeLists.txt b/CMakeLists.txt
index fba36ad..3805c22 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.0)
 project(learningc LANGUAGES C)
 
 set(CHAPTER 1)
-set(EXERCISE 23)
+set(EXERCISE 24)
 
 add_executable(learningc chapters/${CHAPTER}/exercises/${EXERCISE}.c)
 
diff --git a/chapters/1/exercises/24.c b/chapters/1/exercises/24.c
new file mode 100644
index 0000000..dd4ac66
--- /dev/null
+++ b/chapters/1/exercises/24.c
@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include "shared/functions.h"
+#include "shared/functions/synthaxcheck.c"
+
+int main() {
+  char errors[6][30] = {
+    "none",
+    "unmatched round bracket",
+    "unmatched curly bracket",
+    "unmatched single quote",
+    "unmatched double quote",
+    "unmatched square bracket"
+  };
+  int result;
+  if ((result = synthaxcheck()) == 0) {
+    printf("No synthax errors found!\n");
+    return 0;
+  } else {
+    printf("Sythax error found at line %i column %i\nReason: %s\n", unmline, unmcol, errors[result]);
+    return result;
+  }
+}
diff --git a/chapters/1/exercises/24.c~ b/chapters/1/exercises/24.c~
new file mode 100644
index 0000000..09732d3
--- /dev/null
+++ b/chapters/1/exercises/24.c~
@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include "shared/functions.h"
+#include "shared/functions/synthaxcheck.c"
+
+int main() {
+  char errors[6][30] = {
+    "none",
+    "unmatched round bracket",
+    "unmatched curly bracket",
+    "unmatched single quote",
+    "unmatched double quote",
+    "unmatched square bracket"
+  };
+  int result;
+  if ((result = synthaxcheck()) == 0) {
+    printf("No synthax errors found!\n");
+    return 0;
+  } else {
+    printf("Sythax error found at line %i column %i\nReason: %s\n", unmline, unmcol, errors[result]);
+    return result;
+  }
+}//)
diff --git a/chapters/1/exercises/shared/functions.h b/chapters/1/exercises/shared/functions.h
index 6abc644..63ff830 100644
--- a/chapters/1/exercises/shared/functions.h
+++ b/chapters/1/exercises/shared/functions.h
@@ -4,7 +4,8 @@ float convert2cels(int fahr);
 void reverse(char s[MAXLINE], char d[strlen(s)]);
 void copy(char to[], char from[]);
 int getlines(char line[], int maxline);
-int detab(char s[],int lim, int col);
+int detab(char s[], int lim, int col);
 int entab(char s[], int lim, int col);
 int fold(char s[], int lim, int cpr);
-int uncomment(char s[],int lim);
+int uncomment(char s[], int lim);
+int synthaxcheck(void);
diff --git a/chapters/1/exercises/shared/functions.h~ b/chapters/1/exercises/shared/functions.h~
new file mode 100644
index 0000000..037e5ff
--- /dev/null
+++ b/chapters/1/exercises/shared/functions.h~
@@ -0,0 +1,11 @@
+#include <string.h>
+#include "limits.h"
+float convert2cels(int fahr);
+void reverse(char s[MAXLINE], char d[strlen(s)]);
+void copy(char to[], char from[]);
+int getlines(char line[], int maxline);
+int detab(char s[], int lim, int col);
+int entab(char s[], int lim, int col);
+int fold(char s[], int lim, int cpr);
+int uncomment(char s[], int lim);
+int synthaxcheck();
diff --git a/chapters/1/exercises/shared/functions/synthaxcheck.c b/chapters/1/exercises/shared/functions/synthaxcheck.c
new file mode 100644
index 0000000..7c6e69b
--- /dev/null
+++ b/chapters/1/exercises/shared/functions/synthaxcheck.c
@@ -0,0 +1,122 @@
+#include <stdio.h>
+
+int unmline, unmcol;
+
+int synthaxcheck(void) {
+  int c,            // Character integer
+      lastchar = 0, // Last character buffers, for escapes
+      dq = 0,       // Double quote status
+      sq = 0,       // Single quote status
+      cb = 0,       // Curly bracket count
+      sb = 0,       // Square bracket count
+      rb = 0,       // Round bracket count
+      mc = 0,       // Multi-line comment status
+      sc = 0,       // Single line comment status
+      line = 0,     // Current line
+      col = 0,      // Current column
+      lce = 0,      // Last character escape
+      result = 0;   // Result of evaluation
+  while ((c=getchar()) != EOF && result == 0) {
+    if (lastchar != '\\' || lce != 0) {
+      switch (c) {
+        case '"': {
+          if (sq == 0 && mc == 0 && sc == 0) {
+            if (dq == 1) {
+              dq = 0;
+            } else {
+              dq = 1;
+            }
+          }
+          break;
+        }
+        case '\'': {
+          if (dq == 0 && mc == 0 && sc == 0) {
+            if (sq == 1) {
+              sq = 0;
+            } else {
+              sq = 1;
+            }
+          }
+          break;
+        }
+        if (sq == 0 && dq == 0) {
+          if (mc == 0 && sc == 0) {
+            case '{': {
+              cb++;
+              break;
+            }
+            case '}': {
+              cb--;
+              break;
+            }
+            case '[': {
+              sb++;
+              break;
+            }
+            case ']': {
+              sb--;
+              break;
+            }
+            case '(': {
+              rb++;
+              break;
+            }
+            case ')': {
+              rb--;
+              break;
+            }
+          }
+          case '/': {
+            if (lastchar == '/') {
+              sc = 1;
+            } else if (lastchar == '*') {
+              mc = 0;
+            }
+            break;
+          }
+          case '*': {
+            if (lastchar == '/' && mc == 0) {
+              mc = 1;
+            }
+            break;
+          }
+        }
+        case '\n': {
+          if (dq == 0 && sq == 0) {
+            col = 0;
+            line++;
+          } else if (dq != 0) {
+            result = 4;
+          } else if (sq != 0) {
+            result = 3;
+          }
+          if (sc != 0) {
+            sc = 0;
+          }
+          break;
+        }
+        default: break;
+      }
+    }
+    col++;
+    if (lastchar == '\\') {
+      lce = 1;
+    } else {
+      lce = 0;
+    }
+    lastchar = c;
+  }
+  unmcol = col;
+  unmline = line;
+  // Don't overwrite results if previous loop finished with a error
+  if (result == 0) {
+    if (cb != 0) {
+      result = 2;
+    } else if (sb != 0) {
+      result = 5;
+    } else if (rb != 0) {
+      result = 1;
+    }
+  }
+  return result;
+}
diff --git a/chapters/1/exercises/shared/functions/synthaxcheck.c~ b/chapters/1/exercises/shared/functions/synthaxcheck.c~
new file mode 100644
index 0000000..8306720
--- /dev/null
+++ b/chapters/1/exercises/shared/functions/synthaxcheck.c~
@@ -0,0 +1,122 @@
+#include <stdio.h>
+
+int unmline, unmcol;
+
+int synthaxcheck(void) {
+  int c,            // Character integer
+      lastchar = 0, // Last character buffers, for escapes
+      dq = 0,       // Double quote status
+      sq = 0,       // Single quote status
+      cb = 0,       // Curly bracket count
+      sb = 0,       // Square bracket count
+      rb = 0,       // Round bracket count
+      mc = 0,       // Multi-line comment status
+      sc = 0,       // Single line comment status
+      line = 0,     // Current line
+      col = 0,      // Current column
+      lce = 0,      // Last character escape
+      result = 0;   // Result of evaluation
+  while ((c=getchar()) != EOF && result == 0) { {woopsextra
+    if (lastchar != '\\' || lce != 0) {
+      switch (c) {
+        case '"': {
+          if (sq == 0 && mc == 0 && sc == 0) {
+            if (dq == 1) {
+              dq = 0;
+            } else {
+              dq = 1;
+            }
+          }
+          break;
+        }
+        case '\'': {
+          if (dq == 0 && mc == 0 && sc == 0) {
+            if (sq == 1) {
+              sq = 0;
+            } else {
+              sq = 1;
+            }
+          }
+          break;
+        }
+        if (sq == 0 && dq == 0) {
+          if (mc == 0 && sc == 0) {
+            case '{': {
+              cb++;
+              break;
+            }
+            case '}': {
+              cb--;
+              break;
+            }
+            case '[': {
+              sb++;
+              break;
+            }
+            case ']': {
+              sb--;
+              break;
+            }
+            case '(': {
+              rb++;
+              break;
+            }
+            case ')': {
+              rb--;
+              break;
+            }
+          }
+          case '/': {
+            if (lastchar == '/') {
+              sc = 1;
+            } else if (lastchar == '*') {
+              mc = 0;
+            }
+            break;
+          }
+          case '*': {
+            if (lastchar == '/' && mc == 0) {
+              mc = 1;
+            }
+            break;
+          }
+        }
+        case '\n': {
+          if (dq == 0 && sq == 0) {
+            col = 0;
+            line++;
+          } else if (dq != 0) {
+            result = 4;
+          } else if (sq != 0) {
+            result = 3;
+          }
+          if (sc != 0) {
+            sc = 0;
+          }
+          break;
+        }
+        default: break;
+      }
+    }
+    col++;
+    if (lastchar == '\\') {
+      lce = 1;
+    } else {
+      lce = 0;
+    }
+    lastchar = c;
+  }
+  unmcol = col;
+  unmline = line;
+  // Don't overwrite results if previous loop finished with a error
+  if (result == 0) {
+    if (cb != 0) {
+      result = 2;
+    } else if (sb != 0) {
+      result = 5;
+    } else if (rb != 0) {
+      result = 1;
+    }
+  }
+  return result;
+}