D11221123122332313123231323223313132313232332322331323123232321   >>    D1122112312233231312323132322331313231323233232233132312323232   <<    D11221123122332313123231323223313132313232332322331323123232323   >>      D11221123122332313123231323223313132313232332322331323123232322   >>