#include <stdio.h>

#define MAX_CHAR 1024

int calc(char* data,int size);

int main()
{
  char *tp=0;
  try{
    tp = new char[MAX_CHAR];
    int i;
    for(i=0;i<MAX_CHAR && (tp[i] = getchar()) != EOF && tp[i] != '\n' ;i++);
    printf("%d",calc(tp,i));
    delete[] tp;
    tp = 0;
  }catch(...){
    delete[] tp;
    tp = 0;
    fprintf(stderr,"Error.\n");
  }
}

int cal_md(char* data,int size,int &rts);
int cal_pm(char* data,int size,int &rts);
int cal_c(char* data,int size,int &rts);
int cal_int(char* data,int size,int &rts);

int calc(char* data,int size)
{
  int rts=0;
  int val = cal_pm(data,size,rts);
  if(rts != size) throw 0;
  return val;
}
int cal_pm(char* data,int size,int &rts)
{
  if(data == 0 || size < 1) return 0;
  int val,rt;
  bool mn=false;
  if(*data == '+'){
    data++;size--;
  }else if(*data == '-'){
    mn = true;
    data++;size--;
  }
  rts = rt = 0;
  val = cal_md(data,size,rt);
  data += rt;
  size -= rt;
  rts += rt;
  while(size > 0){
    rt = 0;
    if(*data == '+'){
      data++;size--;rts++;
      val += cal_md(data,size,rt);
    }else if(*data == '-'){
      data++;size--;rts++;
      val -= cal_md(data,size,rt);
    }else return val;
    data += rts;
    size -= rts;
    rts += rt;
  }
  if(mn == true) return -val;
  return val;
}
int cal_md(char* data,int size,int &rts)
{
  if(data == 0 || size < 1) return 0;
  int val,rt=0;
  rts = 0;
  val = cal_c(data,size,rt);
  data += rt;
  size -= rt;
  rts += rt;
  while(size > 0){
    rt = 0;
    if(*data == '*'){
      data++;size--;rts++;
      val = val*cal_c(data,size,rt);
    }else if(*data == '/'){
      data++;size--;rts++;
      val = val/cal_c(data,size,rt);
    }else if(*data == '%'){
      data++;size--;rts++;
      val = val%cal_c(data,size,rt);
    }else return val;
    data += rt;
    size -= rt;
    rts+=rt;
  }
  return val;
}
int cal_c(char* data,int size,int &rts)
{
  if(data == 0 || size < 1) return 0;
  int val=0,rt=0;
  rts = 0;
  if(*data == '('){
    data ++;size--;rts++;
    val = cal_pm(data,size,rt);
    data += rt;
    size -= rt;
    rts += rt;
    if(size < 1) throw 0;
    if(*data != ')') throw 0;
    data++;size--;rts++;
  }else{
    val = cal_int(data,size,rt);
    rts += rt;
  }
  return val;
}
int cal_int(char* data,int size,int &rts)
{
  if(data == 0 || size < 1) return 0;
  int val=0;
  rts = 0;
  if(*data == '0'){
    data++;size--;rts++;
    if(size > 0){
      if(*data == 'x' || *data == 'X'){
        // 16
        data++;size--;rts++;
        while(size > 0 && ((*data >= '0' && *data <= '9') || (*data >= 'a' && *data <= 'f') || (*data >= 'A' && *data <= 'F') ) ){
          if(*data >= '0' && *data <= '9'){
            val = val*16 + *data - '0';
          }else if(*data >= 'a' && *data <= 'f'){
            val = val*16 + *data - 'a' + 10;
          }else if(*data >= 'A' && *data <= 'F'){
            val = val*16 + *data - 'A' + 10;
          }else throw 0;
          data++;size--;rts++;
        }
      }else{
        // 8
        while(size > 0 && *data >= '0' && *data <= '7'){
          val = val*8 + *data - '0';
          data++;size--;rts++;
        }
      }
    }
  }else if(*data >= '1' && *data <= '9'){
    // 10
    while(size > 0 && *data >= '0' && *data <= '9'){
      val = val*10 + *data - '0';
      data++;size--;rts++;
    }
  }else throw 0;
  return val;
}