数学工资问题

#include <cstdio>
#include <iostream>
using namespace std;

int main() {
    int a;
    double b,c;
    scanf("%d\n%lf\n%lf", &a , &b , &c);
    printf("NUMBER = %d\n", a);
    printf("SALARY = U$ %.2lf", b*c);
    return 0;
}