import sys

class BinarySearchTree:

    def __init__(self,root = None):
        self.root = root

class BSTNode:

    def __init__(self,value):
        self.value = value
        self.parent = None
        self.left = None
        self.right = None

def main():
    print(1)

if __name__ == "__main__":
    sys.exit(main())