local mod = 1000000007
local function badd(x, y) return (x + y) % mod end
local n = io.read("*n")
local t, dst = {}, {}
for i = 1, 16 do
  t[i] = 0
end
t[1] = 1
local tot = 1
for i = 1, n do
  for j = 1, 16 do dst[j] = 0 end
  for j = 1, 16 do
    local v = ((j - 1) * 2 + 0) % 16 + 1
    dst[v] = badd(dst[v], t[j])
    v = ((j - 1) * 2 + 1) % 16 + 1
    dst[v] = badd(dst[v], t[j])
  end
  for j = 1, 16 do t[j] = dst[j] end
  t[11] = 0
  tot = badd(tot, tot)
end
local ans = 0
for i = 1, 16 do
  ans = badd(ans, t[i])
end
print(badd(tot, mod - ans))