func_code_string: #include <bits/stdc++.h>   using namespace std;   const int INF = 0x3f3f3f3f;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     int n;     cin >> n;     int l = -INF, r = INF, a = 0;     while (n--) {       int a_, d;       cin >> a_ >> d;       if (d == 1)         l = max(l, 1900 - a);       else         r = min(r, 1899 - a);       a += a_;     }     if (r != INF && l <= r)       cout << r + a <<   n ;     else if (r == INF)       cout <<  Infinity n ;     else       cout <<  Impossible n ;     return 0;   }   