# Codeblock 5
fpn = FPN()

out_fpn = fpn(c2, c3, c4, c5)
p2, p3, p4, p5 = out_fpn

print(f'p2: {p2.size()}')
print(f'p3: {p3.size()}')
print(f'p4: {p4.size()}')
print(f'p5: {p5.size()}')