SUBROUTINE STRADB
     1  (BASE,INPUT1,LENGTH1,I1SIGN,INPUT2,LENGTH2,I2SIGN,ANSWER,LENGTHA)
	SUBROUTINE STRADD(BASE,INPUT1,INPUT2,ANSWER)
	SUBROUTINE STRCHK(BASE,INPUT1,INPUT2,IERR)
	SUBROUTINE STRDIV(BASE,INPUT1,DIVISOR,ANSWER,REMAINDER)
	SUBROUTINE STRLEN(INPUT,LENGTH)
	SUBROUTINE STRMUL(BASE,INPUT,MULTIPLIER,ANSWER)
	SUBROUTINE STRRD0(INPUT,LENGTH)
	SUBROUTINE STRRES(INPUT-WORDS,INPUT-BYTES,LENGTH)