Problem:
Score: 400 points

Problem Statement

The Patisserie AtCoder sells cakes with number-shaped candles.
There are X, Y and Z kinds of cakes with 1-shaped, 2-shaped and 3-shaped candles, respectively.
Each cake has an integer value called deliciousness, as follows:

The deliciousness of the cakes with 1-shaped candles are A_1, A_2, ..., A_X.

The deliciousness of the cakes with 2-shaped candles are B_1, B_2, ..., B_Y.

The deliciousness of the cakes with 3-shaped candles are C_1, C_2, ..., C_Z.

Takahashi decides to buy three cakes, one for each of the three shapes of the candles, to celebrate ABC 123.

There are X \times Y \times Z such ways to choose three cakes.

We will arrange these X \times Y \times Z ways in descending order of the sum of the deliciousness of the cakes.

Print the sums of the deliciousness of the cakes for the first, second, ..., K-th ways in this list.

Constraints

1 \leq X \leq 1 \ 000

1 \leq Y \leq 1 \ 000

1 \leq Z \leq 1 \ 000

1 \leq K \leq \min(3 \ 000, X \times Y \times Z)

1 \leq A_i \leq 10 \ 000 \ 000 \ 000

1 \leq B_i \leq 10 \ 000 \ 000 \ 000

1 \leq C_i \leq 10 \ 000 \ 000 \ 000

All values in input are integers.

Input

Input is given from Standard Input in the following format:

X Y Z K
A_1 \ A_2 \ A_3 \ ... \ A_X
B_1 \ B_2 \ B_3 \ ... \ B_Y
C_1 \ C_2 \ C_3 \ ... \ C_Z

Output

Print K lines. The i-th line should contain the i-th value stated in the problem statement.

Sample Input 1

2 2 2 8
4 6
1 5
3 8

Sample Output 1

19
17
15
14
13
12
10
8

There are 2 \times 2 \times 2 = 8 ways to choose three cakes, as shown below in descending order of the sum of the deliciousness of the cakes:

(A_2, B_2, C_2): 6 + 5 + 8 = 19

(A_1, B_2, C_2): 4 + 5 + 8 = 17

(A_2, B_1, C_2): 6 + 1 + 8 = 15

(A_2, B_2, C_1): 6 + 5 + 3 = 14

(A_1, B_1, C_2): 4 + 1 + 8 = 13

(A_1, B_2, C_1): 4 + 5 + 3 = 12

(A_2, B_1, C_1): 6 + 1 + 3 = 10

(A_1, B_1, C_1): 4 + 1 + 3 = 8

Sample Input 2

3 3 3 5
1 10 100
2 20 200
1 10 100

Sample Output 2

400
310
310
301
301

There may be multiple combinations of cakes with the same sum of the deliciousness. For example, in this test case, the sum of A_1, B_3, C_3 and the sum of A_3, B_3, C_1 are both 301.
However, they are different ways of choosing cakes, so 301 occurs twice in the output.

Sample Input 3

10 10 10 20
7467038376 5724769290 292794712 2843504496 3381970101 8402252870 249131806 6310293640 6690322794 6082257488
1873977926 2576529623 1144842195 1379118507 6003234687 4925540914 3902539811 3326692703 484657758 2877436338
4975681328 8974383988 2882263257 7690203955 514305523 6679823484 4263279310 585966808 3752282379 620585736

Sample Output 3

23379871545
22444657051
22302177772
22095691512
21667941469
21366963278
21287912315
21279176669
21160477018
21085311041
21059876163
21017997739
20703329561
20702387965
20590247696
20383761436
20343962175
20254073196
20210218542
20150096547

Note that the input or output may not fit into a 32-bit integer type.

Solution in C (GCC 5.4.1) (judge verdict: Accepted)

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdint.h> // int64_t

#define max(a,b) ((a) > (b) ? (a) : (b))
#define min(a,b) ((a) > (b) ? (b) : (a))

int get_int(void) {
  int num;
  scanf("%d", &num);
  return num;
}

int get_int3(int *a1, int *a2, int *a3) {
  scanf("%d %d %d", a1, a2, a3);
  return 0;
}

// <arr[0]> <arr[1]> .. <arr[size-1]>
int fget_array(int64_t *arr, int size) {
    int i;
    for(i = 0; i < size; i++) {
        scanf("%lld", &arr[i]);
    }
    return 0;
}

#define NUM_MAX 1000
#define K_MAX 3000
#define INF (1e+15)

// sort
int desc(const void *a1, const void *a2) {
    int64_t aa1 = *(int64_t*)a1;
    int64_t aa2 = *(int64_t*)a2;
    if(aa1 > aa2) return -1;
    if(aa1 == aa2) return 0;
    return 1;
}

#define HEAP_MAX (K_MAX*10)
void swap(int64_t *a1, int64_t *a2) {
    int64_t tmp = *a1;
    *a1 = *a2;
    *a2 = tmp;
}
 
// min heap
static int64_t min_heap[HEAP_MAX];
static int hmin_idx = 1;

int mincmp(int64_t a1, int64_t a2) {
    return a1 < a2;
}

int is_min_heap_empty(void) {
    return hmin_idx == 1;
}
 
void enqueue_min(int64_t val) {
    int node = hmin_idx;
    min_heap[hmin_idx++] = val;
    int parent;
    while((parent = node / 2)) {
        if(mincmp(min_heap[parent], min_heap[node])) break;
        swap(&min_heap[parent], &min_heap[node]);
        node = parent;
    }
    return;
}
 
int64_t dequeue_min(void) {
    int64_t ans = min_heap[1];
    min_heap[1] = min_heap[--hmin_idx];
    int node = 1;
    while(1) {
        int this = node;
        int left = node * 2;
        int right = node * 2 + 1;
        if(left < hmin_idx && !mincmp(min_heap[this], min_heap[left])) {
            this = left;
        }
        if(right < hmin_idx && !mincmp(min_heap[this], min_heap[right])) {
            this = right;
        }
        if(this == node) break;
        swap(&min_heap[this], &min_heap[node]);
        node = this;
    }
    return ans;
}

int size = 0;
int update(int64_t new, int k) {
#ifdef DEBUG
    printf("update(%lld)\n", new);
#endif
    if(k > size) {
        enqueue_min(new);
        size++;
        return 1;
    }
    int64_t mmin = min_heap[1];
    if(new <= mmin) return 0;
    enqueue_min(new);
    dequeue_min();
    return 1;
}



int main(void) {
    int xs, ys, zs;
    get_int3(&xs, &ys, &zs);
    int ord = get_int();

    int i, j, k;
    static int64_t xrr[NUM_MAX+1];
    static int64_t yrr[NUM_MAX+1];
    static int64_t zrr[NUM_MAX+1];
    fget_array(xrr, xs);
    fget_array(yrr, ys);
    fget_array(zrr, zs);
    xrr[xs] = yrr[ys] = zrr[zs] = -INF;
    qsort(xrr, xs, sizeof(int64_t), desc);
    qsort(yrr, ys, sizeof(int64_t), desc);
    qsort(zrr, zs, sizeof(int64_t), desc);

    for(i = 0; i < xs; i++) {
        for(j = 0; j < ys; j++) {
            int64_t sum = xrr[i] + yrr[j];
            for(k = 0; k < zs; k++) {
                int64_t sum3 = sum + zrr[k];
                if(!update(sum3, ord)) break;
            }
        }
    }

    qsort(&min_heap[1], ord, sizeof(int64_t), desc);
    for(i = 1; i <= ord; i++) {
        printf("%lld\n", min_heap[i]);
    }
    return 0;
}