#include <iostream>
#include <cstring>
using namespace std;

int n;
string a[1001];

int main(void) {

    scanf("%d", &n);
    for (int i = 0; i < n; ++i) cin >> a[i];

    for (int i = 0; i < n; ++i) {
        if (a[i][0] == '1') printf(".");
        else printf("-");
    } printf("\n");

    return 0;
}