console.log(1 < 2, 2 <= 2, 3 > 4, 4 >= 5);
console.log(1 === 1, 1 !== 1);
console.log(0.1 + 0.2 === 0.3);
const nan = 0 / 0;
console.log(nan === nan, nan !== nan);
console.log(-0 === 0);