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#!/usr/bin/python3

import sys
import datetime
import zoneinfo

s = lambda *d: datetime.datetime(2026, 3, *d, tzinfo = zoneinfo.ZoneInfo("Europe/Warsaw")).timestamp()
t = list(map(s, [13, 25, 26, 27, 28, 30]))
r = list(map(int, sys.stdin.read().split()))
print(int(t[r[0]] - s(*r[1:])) // 60)