import hashlib
from threading import Thread
import sys

BUFFER_SIZE = -1

class MD5File(Thread):
    def __init__(self, filename):
        Thread.__init__(self)
        self.filename = filename
        self.md5 = None

    def run(self):
        hash = hashlib.md5()
        with open(self.filename, 'rb') as fp:
            while True:
                data = fp.read(BUFFER_SIZE)
                if not len(data):
                    break
                hash.update(data)
        print("%s %s" % (hash.hexdigest(), self.filename))

def main():
    threads = []

    for filename in sys.argv[1:]:
        thread = MD5File(filename)
        thread.start()
        threads.append(thread)

    for thread in threads:
        thread.join()

if __name__ == "__main__":
    main()