int samples = 100000000;
	int count = 0;
	CoLoop(0, samples,
		[=, &count](int a, int b) {
			int lcount = 0;
			while(a < b) {
				double x = Randomf();
				double y = Randomf();
				if(sqrt(x*x + y*y) < 1)
					lcount++;
				a++;
			}
			CoWork::FinLock();
			count += lcount;
		}
	);