N, M = map(int, input().split())
C = list(map(int, input().split()))

C.sort()

l = len(C)

for i in range(l):
     M -= C[i]
     if (M <= 0):
         break
     else:
        C[i] = 0

empty_box = 0

for c in C:
    if (c == 0):
        empty_box += 1
    
print(empty_box)