/* Test expression evaluation with 8 variables */
class Main {
	void main() {
		int r1, r2, r3;
		int i0,  i1,  i2,  i3,  i4,  i5, i6, i7;
		
		i0 = 0;
		i1 = 1;
		i2 = 2;
		i3 = 3;
		i4 = 4;
		i5 = 5;
		i6 = 6;
		i7 = 7;
		
		write(i0 + (i1 + ( i2 + ( i3 + ( i4 + (i5 + (i6 + i7))))))); writeln();
		write(((((((i0 + i1) + i2) +  i3) +  i4) +  i5) + i6) + i7); writeln();
		write(((i0 + i1) + (i2 + i3)) + ((i4 + i5) + (i6 + i7))); writeln();
	}
}