// Test type errors with unary operator

class Main {
	void main() {
		int x,y,z;
		boolean a;
		x = -100;
		y = 5;
		
		a = -true;
		z = -y;
		x = +x;
		write(x);
		writeln();
		write(z);
		writeln();
		write(-a);
	}
}