import std.stdio, std.string, std.conv;
import std.range, std.algorithm, std.array;

void main() {
    int n, k;
    int[] a;

    scan(n, k);
    a = readln.split.to!(int[]);
    a.sort();

    auto dp1 = new bool[][](n + 1, k);
    dp1[0][0] = 1;

    foreach (i ; 1 .. n + 1) {
        foreach (j ; 0 .. k) {
            dp1[i][j] = dp1[i-1][j];
            if (j - a[i-1] >= 0) dp1[i][j] |= dp1[i-1][j-a[i-1]];
        }
    }

    auto dp2 = new bool[][](n + 1, k);
    dp2[n][0] = 1;

    foreach_reverse (i ; 0 .. n) {
        foreach (j ; 0 .. k) {
            dp2[i][j] = dp2[i+1][j];
            if (j - a[i] >= 0) dp2[i][j] |= dp2[i+1][j-a[i]];
        }
    }

    int ans;

    foreach (i ; 0 .. n) {
        int mv;

        for (int l = 0, r = k-1; l < k; l++) {
            if (!dp1[i][l]) continue;
            for (; r >= 0; r--) {
                if (dp2[i+1][r] && l + r < k) {
                    mv = max(mv, l + r);
                    break;
                }
            }
        }

        if (mv < k - a[i]) ans++;
        else break;
    }

    writeln(ans);
}


void scan(T...)(ref T args) {
    import std.stdio : readln;
    import std.algorithm : splitter;
    import std.conv : to;
    import std.range.primitives;

    auto line = readln().splitter();
    foreach (ref arg; args) {
        arg = line.front.to!(typeof(arg));
        line.popFront();
    }
    assert(line.empty);
}



void fillAll(R, T)(ref R arr, T value) {
    static if (is(typeof(arr[] = value))) {
        arr[] = value;
    }
    else {
        foreach (ref e; arr) {
            fillAll(e, value);
        }
    }
}
