ans = 0
local n = io.read("*n", "*l")
for i = 1, n do
  local s1, s2, s3, s4 = io.read():match("(%w+) (%w+) (%w+) (%w+)")
  local t = {s1, s2, s3, s4}
  table.sort(t)
  if t[1] == "akai" and t[2] == "marui" and t[3] == "okii" and t[4] == "umai" then
    ans = ans + 1
  end
end
print(ans)