BCX Console Demonstration Program s17.bas 

 DIM a$
 DIM b$
 
 a$ = "BASIC is good -- C is better!"
 
 b$ = MID$(a$, 1, 13)
 
 a$ = MID$(a$, 17, LEN(a$))
 
 ?  b$
 
 ?  a$

Result: 


 BASIC is good
  C is better!