func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, len1, len2, ans;   string s;   int main() {     cin >> n;     getline(cin, s), getline(cin, s);     while (len1 < s.size()) {       len2 = len1 + n - 1;       while (len2 > len1)         if (s[len2] ==  .  || s[len2] ==  ?  || s[len2] ==  ! ) {           len1 = len2 + 2;           break;         } else           len2--;       if (len2 == len1) return puts( Impossible ), 0;       ans++;     }     cout << ans << endl;   }   