mysterious parentheses by %20

t;char*p,*q;f(m){for(q=p;*q;m=t)t=*q%2,*q++=*q/2+24+m*5;*p-48||++p;putchar(40);*p&&f(0);printf("())"+!m*2);}main(s){for(;p=gets(&s);puts(""))f(0);}

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

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