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$argn instead of stdin, 1 more byte golfed

edited Aug 28, 2017 at 13:42

[PHP], 84 79 70 63+1 bytes

for(;$c=$argn[$i++];$a+=$c==";")$c^A^R||$a=~-print chr($a%127);

Run as pipe with -nR

answered May 21, 2017 at 21:47