I could not pass 2 test cases .Output in all cases is coming out to be correct. Please correct and comment the codehttps://ide.codingblocks.com/s/669666

Output in all cases is coming out to be correct. Please correct and comment the code
https://ide.codingblocks.com/s/669666

refer @akshat1409,

#include <iostream>
using namespace std;
int main() {
    char ch;
    cin>>ch;
    if(ch >= 'a' && ch <= 'z'){
        cout<<"L";
    }
    else if(ch >= 'A' && ch <= 'Z'){
        cout<<"U";
    }
    else{
        cout<<"I";
    }
}