[백준] 2739번 : 구구단 - Dart(다트)

https://www.acmicpc.net/problem/2739

import 'dart:io';
void main(){
    int? n=int.parse(stdin.readLineSync()!);
    for(var i=1;i<=9;i++) print("${n} * ${i} = ${n*i}");
}