func_code_string: #include <bits/stdc++.h>   using namespace std;   inline int read() {     int x = 0, f = 0;     char ch = getchar();     while (!isdigit(ch)) f |= ch ==  - , ch = getchar();     while (isdigit(ch)) x = x * 10 + (ch ^ 48), ch = getchar();     return f ? -x : x;   }   int main() {     int n = read(), ans = 0;     for (int i = 1; i <= n; ++i) ans += read() * i;     printf( %d n , ans);     return 0;   }   