11.21

include

include

include

using namespace std;

int main() {
vector A, B, C;
int num;

// 读取表A
while (cin >> num && num != -1) {
    A.push_back(num);
}

// 读取表B
while (cin >> num && num != -1) {
    B.push_back(num);
}

// 合并A和B到C
C.insert(C.end(), A.begin(), A.end());
C.insert(C.end(), B.begin(), B.end());

// 排序C为非递减有序
sort(C.begin(), C.end());

// 删除重复元素
if (!C.empty()) {
    vector<int> result;
    result.push_back(C[0]);
    for (size_t i = 1; i < C.size(); ++i) {
        if (C[i] != C[i - 1]) {
            result.push_back(C[i]);
        }
    }
    C = result;
}

// 输出结果
for (size_t i = 0; i < C.size(); ++i) {
    if (i > 0) {
        cout << ",";
    }
    cout << C[i];
}
cout << endl;

return 0;

}