def soma(a, b):
    return a + b

def subtracao(a, b):
    return a - b

def multiplicacao(a, b):
    return a * b

def divisao(a, b):
    return a / b

a = 10
b = 5

print(soma(a, b))
print(subtracao(a, b))
print(multiplicacao(a, b))
print(divisao(a, b))
