It's char # 156 I think...
int main ()
// There are 256 ascii characters, from 0 to 255.
// A lot of the values just can't be displayed. For example, there is
// the newline character, a backspace character, a tab character, and
// probably the most entertaining one, the beep character.
for (c = 0; c < 256; )
// Adjust the stopping value for i accordingly.
for (i = 0; i < (80) / 7 && c < 256; i++, c++)
printf ("%3d %c ", c, c);
// Depending on stopping value, this may or may not be commented out.