Insert 3dm file by python

Scripting
1

import Rhino
import rhinoscriptsyntax as rs
MAT = “Huk”
rs.Command(’-Insert “D:\PROJEACT\ + MAT.3dm” Objects Enter 0,0,0 1 0’).
I don’t know it with error.
if i using
rs.Command(’-Insert “D:\PROJEACT\Huk.3dm” Objects Enter 0,0,0 1 0’)
so it OK.

2 
import rhinoscriptsyntax as rs
name = 'Huk'
rs.Command('-insert "D:\{}.3dm" Objects Enter 0 1 0'.format(name))