#include<iostream>
#include<string>
#include<cctype>
using namespace std;
class TextProcessor{
    private:
    static int count;
    public:
    static void converToUpper(string str){
        bool valid = true;
        for(int i=0;i<str.length();i++){
            if(!(str[i]>='a' && str[i]<='z')|| (str[i]>='A' && str[i] <='Z')){
                valid=false;
                break;
            }
        }
    if (valid) {
        for(int i =0;i<str.length();i++){
            str[i]=toupper(str[i]);
        }
        cout<str<<endl;
        cout<<++;
    }
    else{
        cout<<"Invalid input"<<endl;
    }
    }
};    
int TextProcessor::cout=0;
int main(){
    int n;
    cin>>n;
    cin.ignore();
    string str;
    for(int i=0;i<n;i++){
        cin>>str;
        TextProcessor::covertToUpper(str);
    }
    return 0;
}