Swap The Characters by twobit

char*a,*b;main(_,s){for(;gets(s);puts())for(b=index(s,32);*b;*b++=0)for(a=s;a<b;a++)*a=*a-(b[1]?:32)?*a:*b;}

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

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