use fmt;

fn ackermann(m: u64, n: u64) u64 = {
	if (m == 0) {
		return n + 1;
	};
	if (n == 0) {
		return ackermann(m - 1, 1);
	};
	return ackermann(m - 1, ackermann(m, n - 1));
};

export fn main() void = {
	for (let m = 0u64; m < 4; m += 1) {
		for (let n = 0u64; n < 10; n += 1) {
			fmt::printfln("A({}, {}) = {}", m, n, ackermann(m, n))!;
		};
		fmt::println()!;
	};
};