L, d = map(int, input().split())

from functools import *

@cache
def f(L):
  T = set()
  for i in range(1, L):
    for j in range(i+1, L):
      S = {i, j-i, L-j}
      if len(S)==3 and max(S)-min(S)<=d:
        # print(S)
        cnt = 0
        for s in S:
          cnt ^= f(s)
        T.add(cnt)
  cnt = 0
  while cnt in T:
    cnt += 1
  # print(L, cnt)
  return cnt

if f(L):
  print('kado')
else:
  print('matsu')