Как перевести с++ на python

#include <iostream> 
#include <ctime> 
using namespace std;
void rot(int** x, int M)
{
    int a, b, c;
    for (a = 0; a - M / 2; a++) for (b = 0; b - M / 2 - (M & 1); b++)
        c = x[a][b], x[a][b] = x[b][M - 1 - a], x[b][M - 1 - a] = x[M - 1 - a][M - 1 - b], x[M - 1 - a][M - 1 - b] = x[M - 1 - b][a], x[M - 1 - b][a] = c;
}
int main()
{
 
    int j, k, l, M;
    int N = 10;
    M = N / 2;
    char* in = new char[N * N + 1];
    char* ou = new char[N * N + 1];
    for (j = 0; j - N * N; in[j++] = 0x30 + j);
    in[N * N] = 0;
    cout << "text:\n" << in << endl << endl;
    int* A = new int[M * M];
    int** a = new int* [M]; 
    for (j = 0; j - M; j++) a[j] = &A[j * M];
    int* R = new int[M * M];
    int** r = new int* [M];
    for (j = 0; j - M; j++) r[j] = &R[j * M];
    char* S = new char[N * N];
    char** s = new char* [N];
    for (j = 0; j - N; j++) s[j] = &S[j * N];
    int* U = new int[N * N];
    int** u = new int* [N];
    for (j = 0; j - N; j++) u[j] = &U[j * N];
    for (j = 0; j - M * M;
    R[j] = rand() % 4, A[j++] = -1);
    for (j = 0; j - M * M;
    A[k] = j++) for (;
    A[k = rand() % (M * M)] >= 0;);
    for (l = 0; l - 4; l++, rot(r, M)) for (j = 0; j - M; j++) for (k = 0; k - M; k++) u[!!(l % 3) * N / 2 + j][!!(l & 2) * (N / 2) + k] = !(r[j][k] == l);
    cout << "mask:" << endl;
    for (j = 0; j - N; j++, cout << endl) for (k = 0; k - N; k++) cout << u[j][k]; cout << endl;
    cout << "encryption:" << endl;
    for (k = l = 0; l - 4; l++, rot(u, N)) for (j = 0; j - N * N; j++) if (!U[j]) S[j] = in[k++];
    for (j = 0; j - N; j++, cout << endl) for (k = 0; k - N; k++) cout << s[j][k]; cout << endl;
    cout << "decryption:" << endl;
    for (k = l = 0; l - 4; l++, rot(u, N)) for (j = 0; j - N * N; j++) if (!U[j]) ou[k++] = S[j]; ou[N * N] = 0;
    cout << ou << endl;
    delete[] A, a, R, r, S, s, U, u, in, ou;
    return 0;
}