#include <iostream>
using namespace std;

void show(int* a, int n) {
    for (int i = 0; i < n; ++i, ++a) {
        cout << *a << " ";
    }
    cout << "\n";
}

int main() {
    srand(time(0));

    int M, N;
    cout << "Enter the size of array A: ";
    if (!(cin >> M) || M <= 0) {
        cerr << "Error: size A must be a positive number!\n";
        return 1;
    }

    cout << "Enter the size of array B: ";
    if (!(cin >> N) || N <= 0) {
        cerr << "Error: size B must be a positive number!\n";
        return 1;
    }

    int* A = new int[M];
    int* B = new int[N];

    for (int i = 0; i < M; i++) {
        A[i] = rand() % 101 - 50;
    }
    for (int i = 0; i < N; i++) {
        B[i] = rand() % 101 - 50;
    }

    int sizeC = M + N;
    int* C = new int[sizeC];

    int* pA = A;
    int* pB = B;
    int* pC = C;

    for (int i = 0; i < M; i++, ++pA, ++pC) {
        *pC = *pA;
    }
    for (int i = 0; i < N; i++, ++pB, ++pC) {
        *pC = *pB;
    }

    cout << "Array A: ";
    show(A, M);
    cout << "Array B: ";
    show(B, N);
    cout << "C merged array: ";
    show(C, sizeC);

    delete[] A;
    delete[] B;
    delete[] C;

    return 0;
}