import java.util.Arrays;

public class Number {
    private static  int[] num = new int [100];
    private static int i = 0;
    public Number(int a){
        while (a != 0){
            num[i] = a % 10;
            i++;
            a = a/10;
        }
    }
    public static void mul (num,  int d){
        int c = 0;
        while (c <= i){
            int res = num[c] * d;
            if(res > 9)
            {
                num[c] = res % 10;
                num[c + 1] = res / 10;
            }
            else num[c] = res;
        }
    }
    public String toString(){
        Arrays.toString(num);
    }
}