What will be the output of the following program

	#include <stdio.h>
	int add(int a,int b){return(a+b);}
	int sub(int x,int y){return(x-y);}
	int main()
	{
	add(10,30);
	printf("%d",sub-add+main);
	return 0;
	}

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output

in this program we perform math operations on the base addresses of the functions , so the output is compiler dependant 
assume the base address of sub() is 4199876 and add() 4199856 and main() is 4199894
so the output will be 4199914