from PIL import Image

import numpy as np

file_name = input()

orig_color = input()
orig_color1 = tuple(int(orig_color[i:i+2], 16) for i in (0, 2, 4))

replacement_color = input()
replacement_color1 = tuple(int(replacement_color[i:i+2], 16) for i in (0, 2, 4))


img = Image.open(file_name).convert('RGB')
data = np.array(img)
data[(data == orig_color).all(axis = -1)] = replacement_color
img2 = Image.fromarray(data, mode='RGB')
img2.close()