#include<stdio.h>
int main(){
    char s[105],stack[105];
    int top = -1;
    fgets(s, sizeof(s), stdin);
    scanf("%s", s);
    for(int i=0; s[i] != '\0'; i++){
        char c = s[i];
        if (c=='(' ||m c =='{' || c =='[' ){
            stack[++top] = c;
        
        }
        else if (c ==')' || c== '}' || c ==']'){
            if (top == -1){
                printf("Not Balanced");
                return 0;
            }
            char t = stack[top--];
            if((c==')' && t !='(') ||
              (c=='}' && t !='{') ||
              (c==']' && t !='[')){
                  printf("Not Balanced");
                  return 0;
              }
        }
    }
    if(top == -1)
       printf("Balanced");
    else
       printf("Not Balanced");
       return 0;
}