C1111233133313231133133313331333132313231333121111331312323331321   >>    C111123313331323113313331333133313231323133312111133131232333132   <<    C1111233133313231133133313331333132313231333121111331312323331323   >>      C1111233133313231133133313331333132313231333121111331312323331322   >>