I dont understand this operator

hello
here is a piece of code . i dont understand this "<?=" and the ">?=" operators. can someone explain it to me please...........

# include <iostream>

// I use Dev-Cpp .So <conio.h> is allowed
# include <conio.h>

using namespace std;

int main()
{
int ans=10,c=35;

ans<?=c;

cout<<ans<<endl;


ans>?=c;

cout<<ans<<endl;

getch();
return 0;
}


here is the output

10
35

thanks.

Beat yah to it - http://cboard.cprogramming.com/showthread.php?t=82030
I already moved it.