function stringGame(input) {
    let wordStr = input.shift();
    let comandLine = input.shift();
    while (comandLine !== 'Done') {
        if (comandLine.includes('Change')) {
            let [command, charts, replace] = comandLine.split(' ');
            if (wordStr.includes(charts)) {
                wordStr = wordStr.split(charts).join(replace);
            }
            console.log(wordStr)
        } else if (comandLine.includes('Includes')) {
            let [command, substring] = comandLine.split(' ');
            wordStr.includes(substring) ?console.log('True'): console.log('False');

        } else if (comandLine.includes('End')) {
            let [command, substring] = comandLine.split(' ');
            let lengthSubstr = substring.length;
            let stringLength = wordStr.length;
            if (wordStr.lastIndexOf(substring)) {
                let index = wordStr.lastIndexOf(substring);
                index + lengthSubstr === stringLength ? console.log(`True`):console.log(`False`);

            } else {
                console.log('False');
            }
        } else if (comandLine.includes('Uppercase')) {
            wordStr = wordStr.toUpperCase();
            console.log(wordStr)
        } else if (comandLine.includes('FindIndex')) {
            let [command, char] = comandLine.split(' ')
            let index = wordStr.indexOf(char)
            console.log(index)
        } else if (comandLine.includes('Cut')) {
            let [command, start, count] = comandLine.split(' ');
            start = Number(start);
            count = Number(count);
            wordStr = wordStr.slice(start, start + count);
            console.log(wordStr);
        }
        comandLine = input.shift()
    }
}