if else

#include<cstdio>
int main()
{
    int s;
    double num;
    scanf("%d %lf",&s,&num);
    if(s==1)
        printf("Total: R$ %.2lf",4.00*num);
    if(s==2)
        printf("Total: R$ %.2lf",4.50*num);
    if(s==3)
        printf("Total: R$ %.2lf",5.00*num); 
    if(s==4)
        printf("Total: R$ %.2lf",2.00*num); 
    if(s==5)
        printf("Total: R$ %.2lf",1.50*num);

    return 0;
}