import numpy as np
a = np.array([1,2,1,5,8])
b = np.array([0,1,5,4,2])
c = a + b
c = c*a
print(c[2]) def func(a, b=5, c=10):
print('a is', a, 'and b is', b, 'and c is', c)
func(3, 7)
func(25, c=24)
func(c=50, a=100)