#include <stdio.h>
int main()
{
    int a ,b,c;
    printf("Enter a:\n");
    scanf("%d", &a);  
    printf("Enter b:\n");
    scanf("%d", &b);  
    printf("c1 = %d\n",a+b);
    printf("c2 = %d\n",a-b);
    printf("c3 = %d\n",a/b);
    printf("c4 = %d\n",a*b);
    return 0;
}