#include
void main() { float x,y,z; char c;
scanf("%f%c%f",&x,&c,&y);
switch ( c ) {
case '+': z=x+y; break;
case '-': z=x-y; break;
case '*': z=x*y; break;
case '/': z=( y==0 )?(0):(x/y); break;
default: z=0; break;
}
printf("%f%c%f=%f\n",x,c,y,z);
}