import java.util.Scanner;
public class A149{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
while(sc.hasNext()){
int times = sc.nextInt();
for(int i = 0; i < times; i++)
System.out.println( calcuArr( strToArr(sc.next())));
}
}

public static int[] strToArr(String s){
int[] arr = new int[s.length()];

for(int i = 0; i < arr.length; i++){
arr[i] = Integer.parseInt(s.substring(i, i+1));
}
return arr;
}

public static int calcuArr(int[] a){
int sum = 1;

for(int i = 0; i < a.length; i++)
sum *= a[i];
return sum;
}
}