differentiation by llhuii

q;char*p;j;main(i,s){for(;q=q?:gets(s);p=q)q=index(q+1,'x'),i=atoi(p?printf("%d%s%c",i,&j,q?*++p:10,j=j>2?'^x'|47+j<<16:j/2*'x',i*=j=*++p<90?:*++p%6),p+1:s);}

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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