00000nz  a2200000n  4500
001  KSH1998000843
005  19980429124658
008  980429 n azknn|abn          |a a|a    | 
150  ▼a연산문▲
450  ▼wr▼i영어▼aarithmetic statement▲
550  ▼a4칙 연산기[四則演算器]▲
550  ▼a반복문[反復文]▲
550  ▼a연산(계산)[演算]▲