# include<stdio.h>
# include<string.h>
int main()
{
    char s=[101];
    char stack[101];
    int top=-1;
    fgets(s,sizeof(s),stdin);
    for(int i=0;s[i]!='\0';i++){
        char ch=s[i];
        if(ch=='('|| ch=='{'||ch=='[')
        {
            stack[++top]=ch;
        }
        else if(ch=')'||\ch=='}'||ch==']')
        {
            if(top==-1);
            {
                printf("Not Balanced");
                return 0;
            }
            char last=stack[top--];
            if((ch==')'&& last!='('||(ch=='}'&& last!='{')||']'&& last!='[')){
                printf("Not Balanced");
                return 0;
            }
        }
    }
    if(top==-1)
    printf("Balanced");
    else
    printf("Not Balanced");
    return 0;
}