D12121212213231323132323323132322331323331323222333132313231333131313231   >>    D1212121221323132313232332313232233132333132322233313231323133313131323   <<    D12121212213231323132323323132322331323331323222333132313231333131313233   >>      D12121212213231323132323323132322331323331323222333132313231333131313232   >>