for(;l=(r=readline)(o=v=i='')+r()+r();print(o))for(;u=l[i%3*l[-1]/3+i/3|0];++i%9||(o+="472590*3618"[v%23%12],v=''))v+=u<l|0
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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