L, D = map(int, input().split())
dp = [0] * (L + 1)
for n in range(6, L + 1):
    S = set()
    for a in range(1, n):
        for b in range(a + 1, n):
            c = n - a - b
            if c <= b or c > a + D:
                continue
            S.add(dp[a]^dp[b]^dp[c])

    for i in range(L + 2):
        if i not in S:
            dp[n] = i
            break

print("kado") if dp[L] else print("matsu")