20v9v,5w,6v3v,5w,v,w,3f,3w,4v3v,w,3f,w,v,w,f,w,3f,w,4v3v,w,3f,w,v,w,5f,w,4v3v,w,3f,3w,f,w,f,3w,4v3v,w,3f,w,a,w,a,w,3f,w,4v3v,w,f,w,7a,2f,w,4v3v,w,4f,a,w,a,w,3f,w,4v3v,5w,a,3w,3f,w,4v6v,2w,3f,w,f,3w,4v6v,w,6f,w,6v6v,w,5f,2w,6v6v,7w,7v20v128,130,146,147,148,149,150,151,152,168,170,18885,93,105,112,125,133,153,173,193,228,229,231154
