export const main = (input) => {
    const lines = input.split('\n');
    const cols = lines[1].split(' ');
    if (cols.includes('Y')) {
        console.log('Four');
    }
    else {
        console.log('Three');
    }
};
if (process.env.NODE_ENV !== 'test') {
    main(require('fs').readFileSync('/dev/stdin', 'utf8'));
}
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