Left$(
    ------------------
    Basic keyword
     
     
    Left$(string,nr)
    Gives leftmost nr of characters from string.
     
    Left$(string)
    Gives leftmost Len-1 characters.
     
    Left$(string variable[count]) = string2
    Overwrite all [or count] characters from start,
    with characters from string2.
     
    Examples:
    a$=Left$("ABCDEF",3)
    Rem gives a$="ABC"
     
    a$=Left$("ABCDEF")
    Rem gives a$="ABCDE"
     
    a$="ABCDEF"
    Left$(a$,2)="XY"
    Rem gives a$="XYCDEF"