#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;1<str.length();i++){
            for(!(str[i]>='a'&&str[i]<='z')) || (str[i]>='A'&&str[i]<='z) {
                valid=false;
                break;
            }
        }
    }
}