function catWatch(input) {

    let n = Number(input);

    for (let i = 1; i <= n - 2; i++) {
        console.log(`${' '.repeat(n)}||${'_'.repeat(n - 2)}||${' '.repeat(n)}`);
    }

    console.log(`${' '.repeat(n - 1)}//${' '.repeat(n)}\\\\${' '.repeat(n - 1)}`);

    for (let i = 1; i <= n - 4; i++) {
        console.log(`${' '.repeat(n - 2)}||${' '.repeat(n + 2)}||${(i === Math.floor((n - 3) / 2) ? ']' : '')}`);
    }

    console.log(`${' '.repeat(n - 1)}\\\\${' '.repeat(n)}//${' '.repeat(n - 1)}`);

    for (let i = 1; i <= n - 2; i++) {
        console.log(`${' '.repeat(n)}||${'_'.repeat(n - 2)}||${' '.repeat(n)}`);
    }

}