func_code_string: #include <bits/stdc++.h>   using namespace std;   char s[100005];   struct node {     int x, op;   } a[100005];   bool cmp(node q, node w) { return q.x < w.x; }   int cnt;   bool vis[100005];   int main() {     int now, len, i;     scanf( %d , &now);     scanf( %s , s + 1);     len = strlen(s + 1);     s[0] =  + ;     for (i = 1; i <= len; i++) {       if (s[i] ==  a ) {         cnt++;         vis[i] = 1;         if (i > 2 && s[i - 1] ==  +  && s[i - 2] ==  +  && !vis[i - 1] &&             !vis[i - 2]) {           a[cnt].op = 1;           vis[i - 1] = 1;           vis[i - 2] = 1;           if (s[i - 3] ==  + )             a[cnt].x = 1;           else if (s[i - 3] ==  - )             a[cnt].x = -1;           else if (s[i - 3] ==  * ) {             a[cnt].x = 0;             int j, flg = 1;             for (j = i - 4; j >= 1; j--)               if (s[j] <  0  || s[j] >  9 ) {                 if (s[j] ==  - ) flg = -1;                 break;               }             for (j++; j <= i - 4; j++) a[cnt].x = 10 * a[cnt].x + s[j] - 48;             a[cnt].x *= flg;           }         } else if (s[i + 1] ==  +  && s[i + 2] ==  +  && !vis[i + 1] &&                    !vis[i + 2]) {           a[cnt].op = 0;           vis[i + 1] = 1;           vis[i + 2] = 1;           if (s[i - 1] ==  + )             a[cnt].x = 1;           else if (s[i - 1] ==  - )             a[cnt].x = -1;           else if (s[i - 1] ==  * ) {             a[cnt].x = 0;             int j, flg = 1;             for (j = i - 2; j >= 1; j--)               if (s[j] <  0  || s[j] >  9 ) {                 if (s[j] ==  - ) flg = -1;                 break;               }             for (j++; j <= i - 2; j++) a[cnt].x = 10 * a[cnt].x + s[j] - 48;             a[cnt].x *= flg;           }         }       }     }     sort(a + 1, a + cnt + 1, cmp);     long long ans = 0;     for (i = 1; i <= cnt; i++) {       if (a[i].op == 1) {         now++;         ans = 1ll * ans + 1ll * now * a[i].x;       } else {         ans = 1ll * ans + 1ll * now * a[i].x;         now++;       }     }     printf( %I64d , ans);   }   