#include <stdio.h>
#include <stdlib.h>

#define POINTLIMIT 500000

int main(void) {
	signed int lines[2][POINTLIMIT][3];
	unsigned int bufpos = 0, pp = 0, linep[2];
	short line = 0, bufls = 0, res;
	char numbuf[16], dir, c;
	fprintf(stderr,"\e[1;31mParsing input...\n");
	while ((c=getchar())!=EOF) {
		if (c >= 'A' && c <= 'Z') {
			dir = c;
		} else if (c == ',' || c == '\n') {
			numbuf[bufpos] = '\0';
			for (int i = 0; i<atoi(numbuf); i++) {
				int start = 0;
				if (pp>1) {
					start = pp-1;
				}
				lines[line][pp][0] = lines[line][start][0];
				lines[line][pp][1] = lines[line][start][1];
				lines[line][pp][2] = 0;
				int va,val;
				switch (dir) {
					case 'U': va = 1, val=1; break;
					case 'R': va = 0, val=1; break;
					case 'D': va = 1, val=-1; break;
					case 'L': va = 0, val=-1; break;
				}
				lines[line][pp][va] = lines[line][start][va]+val;
				pp++;
			}
			if (c == '\n') {
				linep[line]=pp-1;
				line++;
				pp = 0;
			}
			bufpos = 0, bufls = 0;
		} else if (c >= '0' && c <= '9') {
			numbuf[bufpos++] = c;
			bufls = 1;
		} else {
			return 1;
		}
	}
	fprintf(stderr,"Finding closest match...\n");
	int num[3] = {0};
	for (int x=0, m=0; x<linep[0] && x<POINTLIMIT; x++) {
		for (int y=0; y<linep[1] && y<POINTLIMIT; y++) {
			if (
				lines[0][x][0] == lines[1][y][0] &&
				lines[0][x][1] == lines[1][y][1]
			) {
				if (lines[0][x][0] < 0) {
					num[1] = lines[0][x][0]*-1;
				} else {
					num[1] = lines[0][x][0];
				}
				if (lines[0][x][1] < 0) {
					num[2] = lines[0][x][1]*-1;
				} else {
					num[2] = lines[0][x][1];
				}
				if (num[0] == 0 || num[0] > num[1] + num[2]) {
					num[0] = num[1] + num[2];
				}
				fprintf(stderr,"\e[0mFound %i|%i and %i|%i!\n\e[1;31mFound %i match(es)...\r", lines[0][x][0], lines[0][x][1], lines[1][y][0], lines[1][y][1], ++m);
			}
		}
		res = num[0];
	}
	fprintf(stderr,"\nBingo:\n");
	printf("%i\n", res);
	return 0;
}