stdin.get_s(2K).split("
"){|a|a=a.to_f;b:500;c:b;while(a!=b){b.to_s~(a>b?" <":" >") .p;c*=0.5;b+=0.5+(a>b?c:-c);b-=b%1;}b.to_s~" =
" .p;};