C1111133313331323223313331333133313233231311211331333132233131111231   >>    C111113331333132322331333133313331323323131121133133313223313111123   <<    C1111133313331323223313331333133313233231311211331333132233131111233   >>      C1111133313331323223313331333133313233231311211331333132233131111232   >>