w = [0.3, 0.4, 0.5]
kanto = [73, 67, 43]


def cop_yeld(region, weight):
    result = 0
    for x, w in zip(region, weight):
        result += x * w
        return result

cop_yeld(kanto, w)

hoenn = [120, 234, 233] 
cop_yeld(hoenn, w)

import numpy as np

kanto = np.array([73, 673, 43])
w = np.array([0.3, 0.4, 0.5])