func_code_string: #include <bits/stdc++.h>   using namespace std;   bool comp(const pair<int, int> &a, const pair<int, int> &b) {     return (a.first > b.first && a.second < b.second);   }   int main() {     ios::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     int a[4], i;     for (i = 0; i < 4; i++) {       cin >> a[i];     }     sort(a, a + 4);     if (a[1] + a[2] > a[3] || a[2] < a[1] + a[0]) {       cout <<  TRIANGLE ;     } else if (a[1] + a[2] == a[3] || a[2] == a[1] + a[0]) {       cout <<  SEGMENT ;     } else {       cout <<  IMPOSSIBLE ;     }   }   