C11112331312111112111133133313231333132313232233133313223313222232321   >>    C1111233131211111211113313331323133313231323223313331322331322223232   <<    C11112331312111112111133133313231333132313232233133313223313222232323   >>      C11112331312111112111133133313231333132313232233133313223313222232322   >>