How to sum 2 numbers in c#

Question

like a+b=c

Answer 1

https://code.sololearn.com/cfwsHS4Q4GlS/?ref=app

Answer 2

c=a+b;

Answer 3

i want the code

Answer 4

int x = 3;
int y = 6;
int z;
z = x+y;
printf "அங்கால மறந்து போச்சு 😂😁