#!/usr/bin/env lua

if select('#', ...) < 1 then print("syntax: reqs.lua file.jar < deps"); return end

local s = select(1, ...)
local g = {}
local result = {}

for line in io.stdin:lines() do
	local _,_, r, d = line:find"(.+) (.+)"
	g[r] = g[r] or {}
	table.insert(g[r], d)
end

function walk(v)
	for i, u in ipairs(g[v] or {}) do
		if not result[u] then
			print(u)
			result[u] = true
			walk(u)
		end
	end
end

walk(s)