static Key keys[] = {
{ 0, XK_Shift_L, 2 },
{ "←", XK_Left, 1 },
{ "↓", XK_Down, 1 },
{ "↑", XK_Up, 1 },
{ "→", XK_Right, 1},
{ "Alt", XK_Alt_L, 2 },
};
Buttonmod buttonmods[] = {
{ XK_Shift_L, Button2 },
{ XK_Alt_L, Button3 },