View Code of Problem 96

#include<iostream>
#include<algorithm>
#include<math.h>
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<cstring>
#include<string>
#include<sstream>
#include<vector>
#include<map>
#define ll long long
using namespace std;
int main() {
	ll num;
	char c;
	map<char,int> m;
	m['K']=1;
	m['M']=2;
	m['G']=3;
	m['T']=4;
	while(scanf("%lld%cB",&num,&c)!=EOF)
	{	if(num==0)
		return 0;
		else
		{
		ll x,y,sum;
		x=num*pow(1024,m[c]);
		y=num*pow(1000,m[c]);
		sum=x-y;
		printf("%lld\n",sum);
		}
		
	}
	return 0;

}