C1111233133313231133133313331333133313231121333133313331333121211331322123331   >>    C111123313331323113313331333133313331323112133313331333133312121133132212333   <<    C1111233133313231133133313331333133313231121333133313331333121211331322123333   >>      C1111233133313231133133313331333133313231121333133313331333121211331322123332   >>