解

#include<iostream>
#include<string>
using namespace std;
int main(){
    int n,len;
    cin >> len;
    string s;
    for (int i=0;i<len;i++)
    {
        cin >> s;
        if(islower(s[0]))
            s[0]-=32;
        for (int i=1;i<s.size();i++){
            if (isupper(s[i]))
                s[i]+=32;
        }
        cout << s << endl;
    }
}