a = 12
b = 3
print(a + b)    # 15
print(a - b)    # 9
print(a * b)    # 36
print(a / b)    # 4.0
print(a // b)   # 4 integer division, rounded down towards minus infinity
print(a % b)    # 0 modulo: the reminader after integer division

print()

for i in range(1, a // b):
    print(i)


i = 1
print(i)
i = 2
print(i)
i = 3
print(i)

print("--------")

print(a + b / 3 - 4 * 12)       # BEDMAS -35
print(a + (b/3) - (4 * 12))     # -35
print((((a + b) /3) - 4) * 12)  # 12.0
print(((a + b) / 3 -4) * 12)    # 12.0

c = a + b
d = c / 3
e = d - 4
print(e * 12)