View Code of Problem 96

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
    char s[10];
    while(cin>>n>>s){
    	if(n == 0) break;
    	double sum;
    	if(s[0]=='T'){
    		sum = n*pow(1024,4)-n*pow(1000,4);
		}else if(s[0]=='G'){
			sum = n*pow(1024,3)-n*pow(1000,3);
		}else if(s[0]=='M'){
			sum = n*pow(1024,2)-n*pow(1000,2);
		}else if(s[0]=='K'){
			sum = n*1024-n*1000;
		}else{
			sum=0;
		}
		printf("%.0lf\n",sum); 
	}
}