#define _CIN
//#define _SYNC
//   _CIN or _SCANF
//  _SYNC for synchronizing streams

///NOTES:
/*
point(int x, int y) : x{x}, y{y} {}
x&(-x) potęga 2 największa która dzieli x : zwraca prawy 1-bit
x&(x-1) kasuje ostatni 1-bit
command line argument: < "$(ProjectDir)IN.txt" >"$(ProjectDir)OUT.txt"
*/
using namespace std;

#include <vector>
#include <set>
#include <queue>

#include <cmath>
#include <algorithm>
#include <utility>
#include <functional>
#include <string>

#ifdef _CIN
#include <iostream>
#define I(x) cin>>x
#define O(x) cout<<x
#define INT(x) int x; cin>>x
#define LL(x) long long x; cin>>x
#define SPACE cout<<" "
#define nl cout<<'\n'

#elif defined _SCANF
#include <cstdio>
#define I(x) scanf("%d", &x)
#define O(x) printf("%d", x)
#define INT(x) int x; scanf("%d", &x)
#define LL(x) long long x; scanf("%lld", &x)
#define SPACE printf(" ")
#define nl printf("\n")
#elif !defined _CIN && !defined _SCANF
#error Standard input flag not set.
#endif
///utilities
//short names
#define ll long long
#define ull unsigned long long
#define ui unsigned int
//consts
const int oo = 2147483647;
const ll LLoo = 9223372036854775807;
const ll HASH = 999999937;

typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define rep(x,a,y) for(int x=a; x<y; x++)
#define fr(x,y) rep(x, 0, y)
inline int BTS(int n) { int p = 0;  while (1 << p < n) p++; p++; return p; } //binary tree size - return power;

/*
--------Tooster--------
# COCI 70
*/
int T[1002];
int XOR[16] = { 46, 47, 44, 45, 42, 43, 40, 41, 38, 39, 32, 33, 34, 35, 36, 37 };
bool ok(int a) {
	fr(i, 16)
		if (XOR[i])
			return true;
	return false;
}
inline void run() {
	INT(N);
	fr(i, N) {
		scanf("%x", &T[i]);
		if (ok(T[i])) printf("-");
		else printf(".");
	}
	return;
}

int main() {
#ifdef _SYNC
	ios_base::sync_with_stdio(false);
#endif
	run();
	return 0;
}