def fill_dragons(image: Image, indices):
image = image.copy()
for x, y in indices:
for i in range(len(DRAGON)):
for j in range(len(DRAGON[i])):
if not image.in_bounds(x + i, y + j):
print(f"error: x={x}, y={y}, i: {i}, j: {j}")
raise Exception("Unexpected out of bounds while filling")
if DRAGON[i][j] == "#":
if image.get(x + i, y + j) not in ("#", "O"):
print(f"error: x={x}, y={y}, i: {i}, j: {j}")
raise Exception("Unexpected mismatch while filling")
image.put(x+i, y+j, "O")
return image
