二、阅读程序（共 40 分）

阅读程序（3）

#include <iostream>
using namespace std;

int A, B, C;
int a[25][25][25];

int main() {
    cin >> A >> B >> C;
    for (int i = 1; i <= A; i++)
        for (int j = 1; j <= B; j++)
            for (int k = 1; k <= C; k++)
                cin >> a[i][j][k];

    for (int i = 1; i <= A; i++)
        for (int j = 1; j <= B; j++)
            for (int k = 1; k <= C; k++)
                a[i][j][k] += a[i - 1][j][k];

    for (int i = 1; i <= A; i++)
        for (int j = 1; j <= B; j++)
            for (int k = 1; k <= C; k++)
                a[i][j][k] += a[i][j - 1][k];

    for (int i = 1; i <= A; i++)
        for (int j = 1; j <= B; j++)
            for (int k = 1; k <= C; k++)
                a[i][j][k] += a[i][j][k - 1];

    cout << a[A][B][C] << endl;
    return 0;
}

30. 输入为 2 2 2 1 2 3 4 5 6 7 8 时，程序输出为（ ）。

{{ select(1) }}

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