C1111233133313231133133313331333133313233231133133313331313223313231231   >>    C111123313331323113313331333133313331323323113313331333131322331323123   <<    C1111233133313231133133313331333133313233231133133313331313223313231233   >>      C1111233133313231133133313331333133313233231133133313331313223313231232   >>