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Anonymous
c_cpp
04/16/2026 5:40 AM
784 B
9
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#include <bits/stdc++.h>
#pragma GCC optimize("O3")
using namespace std;
#define int long long
const int N = 1e6 + 10;
const int inf = 1e15;
const int mod = 998244353;

inline void solve(){
    
    int n;cin >> n;

    if(n == 2){
        cout << "01";
    }
    else{
        string ans(n, '1');
        ans.front() = ans.back() = '0';
        cout << ans;
    }

}

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int t = 1;
    cin >> t;
    while(t--){
        solve();
        cout << '\n';
    }
    return 0;
}
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