#include <stdio.h>

int main(void) {
  int i, j, a, b;
 
  printf("Enter two positive integers: ");
  scanf("%d %d", &i, &j);

  a = i; b = j;
  
  while (a != b)
     if (a > b){
        a = a - b;
        printf("%d ", a);
     }
     else{
        b = b - a;
        printf("%d ", b);
     }   

  printf("\nGCD of %d and %d is %d\n\n", i, j, a);
  
  return 0;
}