D233123313113313113313222332313231323132322331323132211233132333132313113313231   >>    D23312331311331311331322233231323132313232233132313221123313233313231311331323   <<    D233123313113313113313222332313231323132322331323132211233132333132313113313233   >>      D233123313113313113313222332313231323132322331323132211233132333132313113313232   >>