from random import randint

def Fun_1():
    print("Executada a Fun_1")

def Fun_2():
    print("Executada a Fun_2")

def Fun_3():
    print("Executada a Fun_3")

def Fun_4():
    print("Executada a Fun_4")

functions = locals()
x = randint(1, 4)
nome_fun = "Fun_" + str(x)

print("x =", x)
functions[nome_fun]()