20v20v9v,5w,6v7v,3w,3f,w,6v6v,2w,a,f,a,w,a,3w,4v6v,w,a,w,4f,a,f,w,4v5v,2w,4f,w,f,w,f,w,4v5v,w,f,a,5f,a,f,w,4v5v,w,f,w,f,w,4f,2w,4v5v,w,f,a,4f,w,a,w,5v5v,3w,a,w,a,f,a,2w,5v7v,w,3f,3w,6v7v,5w,8v20v20v88,90,92,107,113,147,153,187,193,208,210,212109,111,128,130,132,149,151,168,170,172,189,191150
