L+N-1L+N-10L+N-11L+N-12L+N-14L+N-13L+N-15L+N-16L+N-17L+N-18L+N-2L+N-19L+N-20L+N-21L+N-22L+N-23L+N-24L+N-25L+N-26L+N-27