Bijective base 10 add by mitchs

r=a=''
while 1:a,r=a and(a//30+~-a//10%3,str(a%10or'A')+r)or(sum(map(int,input(r).split(),[30]*2)),'\n')

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

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