20v20v20v17w,3vw,3f,w,3f,w,3f,w,3f,w,3vw,f,w,f,w,f,w,f,w,f,w,f,w,f,w,f,3w,vw,3f,a,f,a,f,a,f,a,f,a,f,a,f,a,f,w,v3w,a,f,a,f,a,f,a,f,a,f,a,f,a,2f,w,v2v,w,f,a,f,a,f,a,f,a,f,a,f,a,f,a,f,w,v2v,w,f,w,f,w,f,w,f,w,f,w,f,w,f,w,f,w,v2v,w,3f,w,3f,w,3f,w,3f,w,v2v,17w,v20v20v20v124,126,128,130,132,134,136,143,145,147,149,151,153,155,164,166,168,170,172,174,176123,125,127,129,131,133,135,144,146,148,150,152,154,156,163,165,167,169,171,173,17581
