import json
import sys


def main():

	if len(sys.argv) < 2:
		print "requires JSON file"
	else:
		try:
			x = json.load(open(sys.argv[1],"rb"))
			print "file is correct"
			return
		except:
			pass
		file = open(sys.argv[1],"a")
		file.write("]")
		file.close()
		try:
			x = json.load(open(sys.argv[1],"rb"))
			print "file fixed correctly"
		except:
			print "file broken"


if __name__ == "__main__":
	main()