#include <oxstd.h>
#include <oxprob.h>
main()
{
decl x, y=0;
for (decl i=0;i<10;++i)
	{
	x=rann(1,1);
	println(i, " iteration: x = ", x);
		if (x<0)
			y-=x;
		else
			y+=x;
	println(i, " iteration: intermediary y = ", y);
	}
println(y);
}