C11112331312111112111133133313231333132313331333121111121323223311321   >>    C1111233131211111211113313331323133313231333133312111112132322331132   <<    C11112331312111112111133133313231333132313331333121111121323223311323   >>      C11112331312111112111133133313231333132313331333121111121323223311322   >>