20v9v,w,10v8v,w,f,w,9v7v,w,3f,w,8v2v,5w,2f,a,2f,5w,3v2v,w,3f,w,f,a,f,a,f,w,3f,w,3v2v,w,4f,a,f,a,f,a,4f,w,3v2v,5w,f,a,f,a,f,5w,3v6v,w,2f,a,2f,w,7v7v,w,3f,w,8v8v,w,f,w,9v3v,6w,f,6w,4v4v,w,9f,w,5v5v,w,f,5a,f,w,6v6v,w,5f,w,7v7v,w,3f,w,8v8v,w,f,w,9v9v,w,10v20v20v89,108,110,127,129,131,148,150,169,267,268,269,270,27189,108,110,127,129,131,134,148,150,169,267,268,269,270109
