Решение задачи String 27

# include <iostream>
# include <windows.h>
# include <cmath>
# include <fstream>
# include <iomanip>

using namespace std;

const int nmax = 100;
int main()
{
   SetConsoleCP(1251);
   SetConsoleOutputCP(1251);
   char s1[nmax];
   char s2[nmax];
   char s[2*nmax];
   
   ifstream in ("String27.txt");
   in.getline(s1,sizeof(s1));
   cout << s1 << "\n";
   in.getline(s2,sizeof(s2));
   cout << s2 << "\n";
   
   int n1, n2;
   int size_s2 = strlen(s2);
   cout << "Введите целые положительные числа: n1<=" << strlen(s1);
   cout << " и n2<=" << size_s2 << ": ";
   cin >> n1 >> n2;
   strncpy (s, s1, n1);
   s[n1] = '\0';
   
   char* p = s2;
   p += size_s2-n2;
   strcat (s, p);
   
   cout << s << endl;
   system ("pause");
   return 0;
}

# -*- coding: utf-8 -*-
import random

ru_letters = u"абвгдежзийклмнопрстуфхцчшщъыьэюяАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ"
en_letters = u"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
tj_letters = u"ғӣқӯҳҷҒӢҚӮҲҶ"
digits = u"0123456789"

letters = ru_letters + en_letters + tj_letters + digits

K1 = random.randrange(1,21)
N1 = random.randrange(1,K1+1)
S1 = ''.join(random.choice(letters) for _ in range(K1))
K2 = random.randrange(1,21)
N2 = random.randrange(1,K2+1)
S2 = ''.join(random.choice(letters) for _ in range(K2))

print("N1:",N1)
print("K1:",K1)
print("S1:",S1)

S1_length = len(S1)
print("Length of S1:",S1_length)

print()
print("N2:",N2)
print("K2:",K2)
print("S2:",S2)

S2_length = len(S2)
print("Length of S2:",S2_length)

S1_new = S1[:N1]
S1_new_length = len(S1_new)
print("\nNew S1:",S1_new)
print("Length of new S1:",S1_new_length)

S2_new = S2[-N2:]
S2_new_length = len(S2_new)
print("\nNew S2:",S2_new)
print("Length of new S2:",S2_new_length)
print("\nNew string:",S1_new+" "+S2_new)
									

program String27;
var
 N1,N2,i:integer;
 S,S1,S2:string;
 
begin
 Write('N1:');
 Readln(N1);
 Write('N2:');
 Readln(N2);
 Write('S1:');
 Readln(S1);
 Write('S2:');
 Readln(S2);
 
 S:=Copy(S1,1,N1)+Copy(S2,Length(S2)-N2+1,N2);
 
 writeln(S);
end.