local mfl, mce = math.floor, math.ceil
local bxor = bit.bxor
local n, d = io.read("*n", "*n")
local t = {}
for i = 1, 5 do
  t[i] = 0
end
for i = 6, n do
  local z = {}
  local alim = mfl(i / 3)
  for a = 1, alim do
    for b = a + 1, i - a do
      local c = i - a - b
      if c <= b then break end
      if c - a <= d then
        local state = bxor(t[a], bxor(t[b], t[c]))
        z[state] = true
      end
    end
  end
  for j = 0, 1000000007 do
    if not z[j] then t[i] = j break end
  end
end
print(t[n] == 0 and "matsu" or "kado")