#include int main(){int a,b;scanf("%d,%d",&a,&b);printf("%d+%d=%d\n",a,b,a+b);printf("%d-%d=%d\n",a,b,a-b);printf("%d*%d=%d\n",a,b,a*b);printf("%d/%d=%g\n",a,b,(float)a/b);return 0;}
