#!/usr/bin/env python3;
# Begin Main
a = 3
b = 5
c = 2
d = 3.1415926
e = 4.0

print("-b = " + str((-b)))
print("a + b = " + str((a + b)))
print("a + -b = " + str((a + -b)))
print("-a + b = " + str((-a + b)))
print("-a + -b = " + str((-a + -b)))
print("a - b = " + str((a - b)))
print("a - -b = " + str((a - -b)))
print("-a - b = " + str((-a - b)))
print("-a - -b = " + str((-a - -b)))
print("b * c = " + str((b * c)))
print("b * -c = " + str((b * -c)))
print("-b * c = " + str((-b * c)))
print("-b * -c = " + str((-b * -c)))
print("b / c = " + str((b / c)))
print("b / -c = " + str((b / -c)))
print("-b / c = " + str((-b / c)))
print("-b / -c = " + str((-b / -c)))
print("b // c = " + str((int(b / c))))
print("b // -c = " + str((int(b / -c))))
print("-b // c = " + str((int(-b / c))))
print("-b // -c = " + str((int(-b / -c))))
print("b % a = " + str((b % a)))
print("b % -a = " + str((b % -a)))
print("-b % a = " + str((-b % a)))
print("-b % -a = " + str((-b % -a)))
print("d + e = " + str((d + e)))
print("d - e = " + str((d - e)))
print("d * e = " + str((d * e)))
print("e / d = " + str((e / d)))
print("e // d = " + str((int(e / d))))