#!/usr/bin/env python
# -*- coding: utf-8 -*-

import tensorflow.compat.v1 as tfv1
import sys

def main():
    with tfv1.gfile.FastGFile(sys.argv[1], 'rb') as fin:
        graph_def = tfv1.GraphDef()
        graph_def.ParseFromString(fin.read())

        print('\n'.join(sorted(set(n.op for n in graph_def.node))))

if __name__ == '__main__':
    main()