a letter and a number

a letter and a number

描述

we define f(A) = 1, f(a) = -1, f(B) = 2, f(b) = -2, ... f(Z) = 26, f(z) = -26; Give you a letter x and a number y , you should output the result of y+f(x).

输入On the first line, contains a number T(0<T<=10000).then T lines follow, each line is a case.each case contains a letter x and a number y(0<=y<1000).输出for each case, you should the result of y+f(x) on a line样例输入

6
R 1
P 2
G 3
r 1
p 2
g 3

样例输出

19
18
10
-17
-14
-4
 
#include <iostream>
#include <string>
using namespace std;
int main()
{
    int n;
    int a,b;
    char ch;
    cin>>n;
    while(n--)
    {
        cin>>ch;
        cin>>a;
        if(ch>=65 && ch<=90)
            ch -=64;
        else
            ch = 96-ch;

        b = a +ch;
        cout<<b <<endl;
    }
return 0;
}        

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