C1111233131211111211113313331333133313331311211331333133313331333132313332221   >>    C111123313121111121111331333133313331333131121133133313331333133313231333222   <<    C1111233131211111211113313331333133313331311211331333133313331333132313332223   >>      C1111233131211111211113313331333133313331311211331333133313331333132313332222   >>