import re
import sys

content = input()
pattern = r'^(\d+) (\d+)$'
result = re.match(pattern, content)

if not result:
    sys.exit("format error.")

N, K = map(int, content.split())

if not (1 <= N and N <= 10**5):
    sys.exit("N")

if not (2 <= K and K <= 100):
    sys.exit("K")


content = input()
pattern = r'^(-?\d+)( (-?\d+))*$'
result = re.match(pattern, content)

if not result:
    sys.exit("format error.")

A = list(map(int, content.split()))

if len(A) != N:
    sys.exit("A")

sum = 0

for i in range(N):
    if not (1 <= A[i] and A[i] <= 10**5):
        sys.exit("A[i]")
    
    sum += A[i]

if not (K <= sum and sum <= 10**5):
    sys.exit("sum")