import sys
 import datetime
 from dateutil import parser
 dates = []
 first = None
 ustamps = []
 for line in sys.stdin:
     dt = parser.parse(line)
     if first is None: first = dt
     timestamp = (dt - first).total_seconds()
     ustamps.append(timestamp)
 
 for q in enumerate(sorted(ustamps)):
     print "%d\t%d" % q