#include <iostream>
using namespace std;


int main()
{
    
    char lowerCase, upperCase;
    int offset;

    cout << "Enter lowercase letter \n";
    cin >> lowerCase;

    offset = (int)(lowerCase-'a');
    upperCase = (char)('A' + offset);
    cout << "Uppercase letter is " << upperCase << endl;


    return 0;
}