//The Rumbling starts here: #pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math") //#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt") #include<bits/stdc++.h> using namespace std; #define debug(n,m) cout<<"["<<#n<<"]->"<<n<<m #define int long long #define all(x) x.begin(),x.end() #define ai array<int,2> #define pb push_back const int N=1e6+5; const int mod=1e9+9; const int inf=4e18; int a[N]; void levi() { #define tests int n,m; cin>>n>>m; if (n==m) { cout<<n+(m+1)/2-1<<'\n'; for (int i=1;i<=n;++i) { for (int j=1;j<=m/2+1;++j) { cout<<"+"; } for (int j=m/2+2;j<=m;++j) { cout<<"-"; } cout<<'\n'; } } } int32_t main() { ios_base::sync_with_stdio(0); cin.tie(0); int tt=1; #ifdef tests cin>>tt; #endif while(tt--) levi(); } /* */