### BUGGY CODE ###

def examA():
    N = DI()/dec(7)
    ans = N
    print(N)
    return

def examB():
    ans = 0
    print(ans)
    return

def examC():
    ans = 0
    print(ans)
    return

def examD():
    N, K = LI()
    A = LI()
    A.sort()
    mask = (1 << K) - 1

    noneed = -1; need = N
    while(need-noneed>1):
        #print(noneed,need)
        i = (need+noneed)//2
        if A[i]>=K:
            is_need = True
        else:
            dp = 1
            for j in range(N):
                a = A[j]
                if i == j:
                    continue
                dp |= ((dp << a) & mask)
            # print(dp,mask)

            val = max(i for i in range(K) if (dp >> i) & 1)


            is_need = (val+A[i]>=K)

            # print(is_need,i)

        if is_need:
            need = i
        else:
            noneed = i

    ans = noneed + 1

    print(ans)
    return

from decimal import getcontext,Decimal as dec
import sys,bisect,itertools,heapq,math,random
from copy import deepcopy
from heapq import heappop,heappush,heapify
from collections import Counter,defaultdict,deque
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
def I(): return int(input())
def LI(): return list(map(int,sys.stdin.readline().split()))
def DI(): return dec(input())
def LDI(): return list(map(dec,sys.stdin.readline().split()))
def LSI(): return list(map(str,sys.stdin.readline().split()))
def LS(): return sys.stdin.readline().split()
def SI(): return sys.stdin.readline().strip()
global mod,mod2,inf,alphabet,_ep
mod = 10**9 + 7
mod2 = 998244353
inf = 10**18
_ep = dec("0.000000000001")
alphabet = [chr(ord('a') + i) for i in range(26)]
alphabet_convert = {chr(ord('a') + i): i for i in range(26)}

getcontext().prec = 28

sys.setrecursionlimit(10**7)

if __name__ == '__main__':
    examD()

"""
142
12 9 1445 0 1
asd dfg hj o o
aidn
"""

### FIXED CODE ###

def examA():
    N = DI()/dec(7)
    ans = N
    print(N)
    return

def examB():
    ans = 0
    print(ans)
    return

def examC():
    ans = 0
    print(ans)
    return

def examD():
    N, K = LI()
    A = LI()
    A.sort()
    mask = (1 << K) - 1

    noneed = -1; need = N
    while(need-noneed>1):
        #print(noneed,need)
        i = (need+noneed)//2
        if A[i]>=K:
            is_need = True
        else:
            dp = 1
            for j in range(N):
                a = A[j]
                if a>K:
                    break
                if i == j:
                    continue
                dp |= ((dp << a) & mask)
            # print(dp,mask)

            is_need = (dp > mask>>A[i])

            # print(is_need,i)

        if is_need:
            need = i
        else:
            noneed = i

    ans = noneed + 1

    print(ans)
    return

from decimal import getcontext,Decimal as dec
import sys,bisect,itertools,heapq,math,random
from copy import deepcopy
from heapq import heappop,heappush,heapify
from collections import Counter,defaultdict,deque
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
def I(): return int(input())
def LI(): return list(map(int,sys.stdin.readline().split()))
def DI(): return dec(input())
def LDI(): return list(map(dec,sys.stdin.readline().split()))
def LSI(): return list(map(str,sys.stdin.readline().split()))
def LS(): return sys.stdin.readline().split()
def SI(): return sys.stdin.readline().strip()
global mod,mod2,inf,alphabet,_ep
mod = 10**9 + 7
mod2 = 998244353
inf = 10**18
_ep = dec("0.000000000001")
alphabet = [chr(ord('a') + i) for i in range(26)]
alphabet_convert = {chr(ord('a') + i): i for i in range(26)}

getcontext().prec = 28

sys.setrecursionlimit(10**7)

if __name__ == '__main__':
    examD()

"""
142
12 9 1445 0 1
asd dfg hj o o
aidn
"""