N,S = list(map(int,input().split()))
S -= 1
A = list(map(int,input().split()))
A.sort(reverse=True)

SUM = 0
now = 0
for i in range(N):
    if(SUM + A[i] > S):
        print(A[i])
        exit()
    SUM += A[i]
    now += 1
print(1)