#include <stdio.h>
int main()
{
    int a,b,c,s,d,p,q,r;
    scanf("%d%d%d",&a,&b,&c);

    if (b==0){
        return 0;
}

    s=a+b;
    d=a-b;
    p=a*b;
    q=a/b;
    r=a%b;

    switch(c){
        case 1: printf("%d+%d=%d\n",a,b,s);
        break;
        case 2: printf("%d-%d=%d\n",a,b,d);
        break;
        case 3: printf("%d*%d=%d\n",a,b,p);
        break;
        case 4:
            if(r==0){
                printf("%d÷%d=%d\b",a,b,q);
            }
            else{
                printf("%d÷%d=%d 余り%d\n",a,b,q,r);
            }
        break;
    
    }

    return 0;

}