seznam = [1, 10, 100, 1000]

print(len(seznam))

melodie = ["C", "E", "G"]*2 + ["E", "E", "D", "E", "F", "D"]*2 + ["E", "D","C"]
print(melodie)

print([1, 2, 3]*2)

x = [1, 2, 3]
x.extend([1, 2, 3])
print(x)

print(melodie.count("E"))
print("Z" in melodie)
print("E" in melodie)

print(melodie.index("G"))

print("EG" in melodie)