#!/usr/bin/python3
import sys
import re
if __name__ == '__main__':
if len(sys.argv)>1:
port_range = sys.argv[1]
if re.search('[0-9]{1,5}-[0-9]{1,5}', port_range):
for tmp in port_range.split('-'):
if int(tmp) not in range(1, 65535):
sys.exit(1)
else:
if int(port_range) not in range(1, 65535):
sys.exit(1)
else:
sys.exit(2)
sys.exit(0)