a=System.in.readLines() 9.times{l=a[it] s=t='' 9.times{i->s+=' '+'^V'[a[it-1][i]<(c=l[i])?0:1] t+=i?d<c?' < ':' > ':t t+=d=c}println it?s+'\n'+t-' ':t}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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