Login task

function solve(input) {
    let username = input[0];
    let password = '';

    //reverse username
    for(let i = username.length - 1; i >= 0; i--) {
        password += username[i];
    }

    //check password
    for(let i = 1; i < input.length; i++) {
        if(i < 4) {
            if(password === input[i]) {
                console.log(`User ${username} logged in.`);
            } else {
                console.log("Incorrect password. Try again.");
            }
        } else if(i == 4) {
            if(password === input[i]) {
                console.log(`User ${username} logged in.`);
            } else {
                console.log(`User ${username} blocked!`);
            }
        }
    }
}