#include<sdtio.h>
#include<string.h>
int main()
{
    char s[105],stack[105];
    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 open=stack[top--];
            if((ch==')'&&open!='('||ch=='}'&&open!='{'||ch==']'&&open!='['))
            {
                printf("Not Balanced");
                return 0;
            }
        }
    }
    if(top==-1)
    printf("Balanced");
    else
    printf("Not Balanced");
    return 0;
}