#include <stdio.h>

int test(int x) {
    int i = 0;

    while (x) {
        i = i * 10 + x % 10;
        x /= 10;
        continue;
      }
    return i;
  }

int main(void) {
    printf("%d %d %d\n", test(8505), test(1000), test(123));
    return 0;
  }