B33113313132313113313223313331323133313223313231333133112111112113313222322131   >>    B3311331313231311331322331333132313331322331323133313311211111211331322232213   <<    B33113313132313113313223313331323133313223313231333133112111112113313222322133   >>      B33113313132313113313223313331323133313223313231333133112111112113313222322132   >>