00000nz  a2200000n  4500
001  KSH1998033268
005  20000321010744
008  980429 n azknn|abn          |a a|a    | 
150  ▼a블록 표시▲
450  ▼a블록 마크[block mark]▲
450  ▼wr▼i영어▼ablock mark▲
550  ▼a블록(컴퓨터)[block]▲
550  ▼a블록명▲