from sys import argv script, start, end = argv vis = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] ans = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] def dfs(cur, m):  ans[cur] = m  if cur == int(end) - int(start) + 1:   for i in xrange(int(start), int(end) + 1):    print ans[i],   print   return  cur = cur + 1  for i in xrange(int(start), int(end) + 1):   if vis[i] == False:    vis[i] = True    dfs(cur, i)    vis[i] = False for i in xrange(1, len(vis)):  vis[i] = False dfs(0, start)