C1111233133313231133133313331333133313231232313331323222112312321   >>    C111123313331323113313331333133313331323123231333132322211231232   <<    C1111233133313231133133313331333133313231232313331323222112312323   >>      C1111233133313231133133313331333133313231232313331323222112312322   >>