function pigIt(str){
    str = str.split(' ');
    let alphavit = 'qwertyuiopasdfghjklzxcvbnm1234567890';
    let firstLetter;
    for (i = 0; i < str.length; i++) {
        if (str[i].length !== 1 || alphavit.indexOf(str[i].toLowerCase()) !== -1){
            str[i] = str[i].split('');
            firstLetter = str[i][0];
            str[i].splice(0, 1);
            str[i][str[i].length] = firstLetter + 'ay';
            str[i] = str[i].join('');
        }
    }
    str = str.join(' ')
    return str
}