[ADNAN]

OK... I'll bite
Do you know how to program a lathe toolpath in Mastercam ?

G71 is a turning op, G72 is facing.... it appears it is programmer training problem, not a post mod requirement
...you need to correctly set the operation parameters to get the correct NC output. Or select the correct contour.

I have to make a program like this on master cam please help me i think i need to change the postprossar.....

N0000 T0202
N0010 M3 S1000
N0020 G0 X-18 Z5
N0030 Z2
N0040 Z1
N0050 G72 X-2.2 I0.1 K0.3 P0080 Q0090 F115
N0060 G0 X-18
N0070 Z5
N0080 G1 X-2.2 F80
N0090 Z-9.9
N0100 G1 X-6
N0110 Z-11.1
N0120 G1 X-15
N0130 Z-12
N0140 G0 X-18
N0150 Z5
N0160 M30