20v20v7v,5w,8v7v,w,3f,w,8v7v,w,3f,w,8v4v,4w,f,a,f,4w,5v4v,w,3f,3a,3f,w,5v4v,w,2f,5a,2f,w,5v4v,w,3f,3a,3f,w,5v4v,4w,f,a,f,4w,5v7v,w,3f,w,8v7v,w,3f,w,8v7v,5w,8v20v20v109,128,129,130,147,148,149,150,151,168,169,170,18988,89,90,128,130,132,146,152,166,168,170,209,21069
