题解 | 讨厌鬼进货

import sys

N,A,B=input().split(),input().split(),input().split()

x = int(N[1])
n = int(N[0])

z=0
A = [int(a) for a in A]
B = [int(b) for b in B]

for i in range(0,n):
    if A[i] > B[i]:
        z += B[i]
    else:
        z += A[i]

if z > x:
    print(x)
else:
    print(z)