char*p,s[];x,y;main(i,n){for(;gets(s);)for(p=index(s,63),*p=58;(*p)-->48;(i%2?y%10:x%11)||puts(s))for(x=y=0,i=4;n=s[i];y+=n*(i++%2*2+1))x+=n%30*(14-i);}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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