const fs = rquire('fs');
const input = fs.readFileSync('/dev/stdin').toString().split('\n');
let number = String(input[0] * input[1] * input[2]);
for (let i = 0; i <= 10; i++) {
let count = 0;
for (let j = 0; j < number.length; j++) {
if (Number(number[j]) === i) {
count++;
}
}
consolt.log(count);
}
다른 방법을 찾아보자.