PARAMETER p_count TYPE i.
DATA: gv_str1(255) VALUE '1',
      gv_str2(255) VALUE '1',
      gv_c(3).
DO p_count TIMES.
  gv_c = sy-index + 1.
  CONDENSE gv_c.
  IF sy-index MOD 2 = 1.
    WRITE gv_str1 LEFT-JUSTIFIED.
  ELSE.
    WRITE gv_str2 LEFT-JUSTIFIED.
  ENDIF.
  CONCATENATE gv_str1 '-' gv_c INTO gv_str1.
  CONCATENATE gv_c '-' gv_str2 INTO gv_str2.
ENDDO.