#include<iostream>
#include<string>
#include<cctype>
using namespace std;
class textprocessor{
    private:
    static int count;
    public:
    static void converttoupper{
        bool valid = true;
        for(int i= 0;i<str.length();i++){
            for(!(str[i]>='a'&&str[i]<='z')||(str[i]>='A'&& str[i]<='Z')){
                
            }
        }
    }
}