#include <bits/stdc++.h>

using namespace std;

const int N = 4e6+10;

char ip[N];
int n;
int n_plus_back[N];
char ans[N];

int main() {
  scanf("%s", ip+1);
  n = strlen(ip + 1);
  for (int i = n; i > 0; --i) {
    if (ip[i] == '+')
      n_plus_back[i] = 1 + n_plus_back[i + 1];
  }
  int it = 0;
  for (int i = 1; i <= n;) {
    int var_pos;
    int nxt_var;
    int cnt_pre_incr;
    int cnt_post_incr;
    if (n_plus_back[i] == 2) {
      cnt_pre_incr = 1;
      var_pos = i + 2;
    } else { // n_plus_back[i] == 0
      cnt_pre_incr = 0;
      var_pos = i;
    }
    if (n_plus_back[var_pos + 1] >= 2) {
      cnt_post_incr = 1;
      nxt_var = var_pos + 4;
    } else {
      cnt_post_incr = 0;
      nxt_var = var_pos + 2;
    }

    for (int k = 0; k < cnt_post_incr; ++k) {
      ans[++it] = '(';
    }
    for (int k = 0; k < cnt_pre_incr; ++k) {
      ans[++it] = '(';
      ans[++it] = '+';
      ans[++it] = '+';
    }
    ans[++it] = ip[var_pos];
    for (int k = 0; k < cnt_pre_incr; ++k) {
      ans[++it] = ')';
    }
    for (int k = 0; k < cnt_post_incr; ++k) {
      ans[++it] = '+';
      ans[++it] = '+';
      ans[++it] = ')';
    }
    if (nxt_var <= n) {
      ans[++it] = '+';
    }
    i = nxt_var;
  }
  printf("%s\n", ans + 1);
}