local a, b, c = 1, 2, 3
local t = {a, b, c, x = a, ["y"] = b, [c] = c}
print(t[1], t[2], t[3], t.x, t.y, t[3])
local u = {a = a, b = b}
print(u.a, u.b)
local v = { [a] = b, [b] = a }
print(v[1], v[2])