C111123313121111121111331333133313331323132333132313232233131111222321   >>    C11112331312111112111133133313331333132313233313231323223313111122232   <<    C111123313121111121111331333133313331323132333132313232233131111222323   >>      C111123313121111121111331333133313331323132333132313232233131111222322   >>