20v20v7v,6w,7v7v,w,4f,w,7v3v,5w,f,2w,f,2w,6v3v,w,6f,w,2f,3w,4v3v,w,3f,2a,f,w,2a,2f,2w,3v3v,4w,a,2f,w,a,4f,w,3v5v,w,f,3a,w,3a,2f,w,3v5v,w,f,w,6f,3w,3v5v,w,f,4w,3f,w,5v5v,w,6f,3w,5v5v,8w,7v20v20v127,128,131,132,147,151,167,168,169,171,172,173127,128,132,133,147,153,167,168,169,171,172,17391
