20v7v,5w,8v5v,3w,f,a,f,3w,6v5v,w,2f,a,f,a,2f,w,6v5v,w,f,a,f,a,f,a,f,w,6v5v,2w,f,a,f,a,f,a,w,6v6v,w,a,f,a,f,a,f,w,6v5v,2w,f,a,f,a,f,a,w,6v5v,w,f,a,f,a,f,a,f,w,6v5v,w,7f,w,6v5v,3w,4f,2w,6v7v,w,2f,3w,7v7v,4w,9v20v20v49,68,70,87,89,91,108,110,112,127,129,131,148,150,152,167,169,17168,70,87,89,91,108,110,112,127,129,131,148,150,152,167,169,171,18949
