import strscans

type Ans = enum
  KoD, blackyuki, same

var (_, a, b) = stdin.readAll.scanTuple"$f $f"
a = a * 1000 / 60 / 60

case a.cmp b
of 0:
  echo Ans 2
of 1:
  echo Ans 0
else:
  echo Ans 1