/********************* Template ************************/
#include <set>
#include <map>
#include <list>
#include <cmath>
#include <ctime>
#include <deque>
#include <queue>
#include <stack>
#include <bitset>
#include <cstdio>
#include <string>
#include <vector>
#include <cassert>
#include <cstdlib>
#include <cstring>
#include <sstream>
#include <fstream>
#include <numeric>
#include <iomanip>
#include <iostream>
#include <algorithm>
#include <functional>
using namespace std;
#define EPS             1e-8
#define DINF            1e15
#define MAXN            100050
#define MOD             1000000007
#define INF             0x7fffffff
#define LINF            1LL<<60
#define PI              3.14159265358979323846
#define lson            l,m,rt<<1
#define rson            m+1,r,rt<<1|1
#define BUG             cout<<" BUG! "<<endl;
#define LINE            cout<<" ------------------ "<<endl;
#define FIN             freopen("in.txt","r",stdin);
#define FOUT            freopen("out.txt","w",stdout);
#define mem(a,b)        memset(a,b,sizeof(a))
#define FOR(i,a,b)      for(int i = a ; i < b ; i++)
#define read(a)         scanf("%d",&a)
#define read2(a,b)      scanf("%d%d",&a,&b)
#define read3(a,b,c)    scanf("%d%d%d",&a,&b,&c)
#define write(a)        printf("%d\n",a)
#define write2(a,b)     printf("%d %d\n",a,b)
#define write3(a,b,c)   printf("%d %d %d\n",a,b,c)
#pragma comment         (linker,"/STACK:102400000,102400000")
template<class T> inline T L(T a)               {return (a << 1);}
template<class T> inline T R(T a)               {return (a << 1 | 1);}
template<class T> inline T lowbit(T a)          {return (a & -a);}
template<class T> inline T Mid(T a,T b)         {return ((a + b) >> 1);}
template<class T> inline T gcd(T a,T b)         {return b ? gcd(b,a%b) : a;}
template<class T> inline T lcm(T a,T b)         {return a / gcd(a,b) * b;}
template<class T> inline T ABS(T a)             {return a > 0 ? a : -a;}
template<class T> inline T Min(T a,T b)         {return a < b ? a : b;}
template<class T> inline T Max(T a,T b)         {return a > b ? a : b;}
template<class T> inline T Min(T a,T b,T c)     {return min(min(a,b),c);}
template<class T> inline T Max(T a,T b,T c)     {return max(max(a,b),c);}
template<class T> inline T Min(T a,T b,T c,T d) {return min(min(a,b),min(c,d));}
template<class T> inline T Max(T a,T b,T c,T d) {return max(max(a,b),max(c,d));}
template<class T> inline T exGCD(T a, T b, T &x, T &y){if(!b) return x = 1,y = 0,a;T res = exGCD(b,a%b,x,y),tmp = x;x = y,y = tmp - (a / b) * y;return res;
}
template<class T> inline T reverse_bits(T x){x = (x >> 1 & 0x55555555) | ((x << 1) & 0xaaaaaaaa); x = ((x >> 2) & 0x33333333) | ((x << 2) & 0xcccccccc);x = (x >> 4 & 0x0f0f0f0f) | ((x << 4) & 0xf0f0f0f0); x = ((x >> 8) & 0x00ff00ff) | ((x << 8) & 0xff00ff00);x = (x >>16 & 0x0000ffff) | ((x <<16) & 0xffff0000); return x;
}
//typedef long long LL;    typedef unsigned long long ULL;
//typedef __int64 LL;      typedef unsigned __int64 ULL;
/*********************   By  F   *********************/
string str;
string obj[105],sub[105],verb[105];
int cnt1 = 0 ,cnt2 = 0 ,cnt3 = 0 ;
int len;
void divide(){for(int i = 0 ; i < len ; i++){if(str[i] == '('){for(int j = i+1 ; j < len ; j++){if(str[j] == ')'){sub[cnt1++] = str.substr(i+1,j-i-1);break;}}}}for(int i = 0 ; i < len ; i++){if(str[i] == '['){for(int j = i+1 ; j < len ; j++){if(str[j] == ']'){verb[cnt2++] = str.substr(i+1,j-i-1);break;}}}}for(int i = 0 ; i < len ; i++){if(str[i] == '{'){for(int j = i+1 ; j < len ; j++){if(str[j] == '}'){obj[cnt3++] = str.substr(i+1,j-i-1);break;}}}}
}
int main(){//FIN;while(getline(cin,str)){len = str.size();cnt1 = 0 ,cnt2 = 0 ,cnt3 = 0;for(int i = 0 ; i < len ; i++){if(str[i] >= 'A' && str[i] <= 'Z') {str[i] = str[i] - 'A' + 'a';break;}}string ssub[105];int cnt = 0;for(int i = 0 ; i < len ; i++){//cout<<i<<endl;if(str[i] == '(' || str[i] == '{' || str[i] == '['){for(int j = i+1 ; j < len ; j++){if(str[j] == ')' || str[j] == ']' || str[j] == '}'){ssub[cnt++] = str.substr(i,j-i+1);//cout<<sub[cnt-1]<<endl;i = j;break;}}}else{for(int j = i+1 ; j < len ; j++){if(str[j] == '(' || str[j] == '{' || str[j] == '['){ssub[cnt++] = str.substr(i,j-i);//cout<<sub[cnt-1]<<endl;i = j-1;break;}}}}divide();int flag = 0,c = 0;string res;for(int i = 0 ; i < cnt ; i++){if(ssub[i][0] == '(' || ssub[i][0] == '{' || ssub[i][0] == '[' ){if(flag == 0) res+=obj[c];else if(flag == 1) res+=sub[c];else if(flag == 2) res+=verb[c];if(++flag == 3){flag = 0;c++;}}else res+=ssub[i];}if(res[0] >= 'a' && res[0] <= 'z')res[0] = res[0] - 'a' + 'A';cout<<res<<endl;}return 0;
}