C1111233133313231133133313331333133313233231133133313331311223311   >>    C111123313331323113313331333133313331323323113313331333131122331   <<    C1111233133313231133133313331333133313233231133133313331311223313   >>      C1111233133313231133133313331333133313233231133133313331311223312   >>