hi

#include <stdio.h>
#include <string.h>

#define MAXN 20
#define MAXK 10000

int n, k, a[MAXN + 1], t[MAXN + 1], dp[MAXN + 1][MAXK + 1];

int max(int a, int b)
{
    return a > b ? a : b;
}

int solve(int i, int j)
{
    if (i > n)
        return 0;
    if (dp[i][j] != -1)
        return dp[i][j];
    if (j < t[i])
        return dp[i][j] = solve(i + 1, j);
    else
        return dp[i][j] = max(solve(i + 1, j), solve(i + 1, j - t[i]) + a[i]);
}

int main() {
    scanf("%d %d", &n, &k);
    for (int i = 1; i <= n; i++)
        scanf("%d", &a[i]);
    for (int i = 1; i <= n; i++)
        scanf("%d", &t[i]);
    memset(dp, -1, sizeof(dp));
    printf("%d\n", solve(1, k));
    return 0;
}