if he has ML/AML & MR/AMR?
You need DR & DL, 3DC it's not enough

3-6-1?
some
3DC-1DMC-2MC-AML-AMC-AMR-ST
3DC-1DMC-3MC-AML-AMR-ST
3Dwide-1DMC-2MC-AML-AMC-AMR-ST