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public text v1 · immutable#!/bin/sed -uf
:1; s/^/b/; t2; b2
:2; s/x//; t3; b7
:3; s/b/a/; t4; b5
:4; s/^/c/; t3; b3
:5; s/a/b/; t5; b6
:6; s/c/a/; t6; b2
:7; s/b//; t7; bN
:N
#!/bin/sed -uf
:1; s/^/b/; t2; b2
:2; s/x//; t3; b7
:3; s/b/a/; t4; b5
:4; s/^/c/; t3; b3
:5; s/a/b/; t5; b6
:6; s/c/a/; t6; b2
:7; s/b//; t7; bN
:N