OPEN Statement - Format 2 - Indexed and Relative

1 OPEN
2+ 
2.0 INPUT
2.0.1+ 
2.0.1 file-name-1
2.0 OUTPUT
2.0.1+ 
2.0.1 file-name-2
2.0 I-O
2.0.1+ 
2.0.1 file-name-3