#include<stdio.h>
int main()
{
    int john_yield;
    int emma_yield;
    if(scan("%d,&john_yield")!=1)
    {
        return 1;
    }
    if (scan("%d",&emma_yield)!=1)
    {
        return 1;
    }
    printf("john yield: %d and emma yield: %d\n"john_yield, emma_yield);
    return 0;
}