D12121212121313232233132332313233313132322132313331323131121231   >>    D1212121212131323223313233231323331313232213231333132313112123   <<    D12121212121313232233132332313233313132322132313331323131121233   >>      D12121212121313232233132332313233313132322132313331323131121232   >>