#include <stdio.h>

int f(int a, int b) {
  if (a == 0 && b == 0)
    return 1;
  if (a != 0 && b == 0)
    return 0;
  if (a == 0 && b != 0)
    return 0;
  return f(a / 10, b / 10);
}

int main() {
  int a, b;
  a =  110, b =  119, printf("%d, %d -> %s\n", a, b, (f(a, b)) ? "T" : "F");
  a = -110, b = -119, printf("%d, %d -> %s\n", a, b, (f(a, b)) ? "T" : "F");
  a = -110, b = 119,  printf("%d, %d -> %s\n", a, b, (f(a, b)) ? "T" : "F");
  a = 1234, b = 214,  printf("%d, %d -> %s\n", a, b, (f(a, b)) ? "T" : "F");
  a = 567,  b = 23,   printf("%d, %d -> %s\n", a, b, (f(a, b)) ? "T" : "F");
  a = 567,  b = -23,  printf("%d, %d -> %s\n", a, b, (f(a, b)) ? "T" : "F");
  a = 567,  b = +23,  printf("%d, %d -> %s\n", a, b, (f(a, b)) ? "T" : "F");
  return 0;
}
/* end */