#include <bits/stdc++.h> using namespace std; void solve() { int n, m; cin >> n >> m; int N = n * m; int mx = 0; vector<string> res; for (int s = 0; s < (1 << N); s++) { vector<string> a(n, string(m, ' ')); for (int i = 0; i < N; i++) { int x = i / m; int y = i % m; if (s & (1 << i)) { a[x][y] = '+'; } else { a[x][y] = '-'; } } int cnt = 0; for (int i = 0; i < n; i++) { int red = 0, blue = 0; for (int j = 0; j < m; j++) { if (a[i][j] == '+') { red++; } else { blue++; } } cnt += red > blue; } for (int j = 0; j < m; j++) { int red = 0, blue = 0; for (int i = 0; i < n; i++) { if (a[i][j] == '+') { red++; } else { blue++; } } cnt += blue > red; } if (cnt > mx) { mx = cnt; res = a; } } cout << mx << '\n'; for (auto s : res) { cout << s << '\n';; } } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int t; cin >> t; while (t--) { solve(); } return 0; }