Code

```

//MMMMMMMMMMMMMMMMMMMMMMMMMMMM//

#include "stdafx.h"

#include "math.h"

#include "iostream"

#include "windows.h"

#include "string.h"

using namespace std;

int _tmain()

{  

 setlocale(0, "RUS");

 SetConsoleCP(1251);

 SetConsoleOutputCP(1251);

 char A[111], B[111], z;

 int i,k=0,a=-1,v=-1;

 cout<<"Введите текст:"<<endl;

 gets_s(A);

 cout<<"\n";

 cout<<"--ПРОМЕЖУТОЧНЫЕ ВЫЧИСЛЕНИЯ--"<<endl;

 for(i=0;A[i]!='\0';i++)

 {

  if(((A[i]=='а') || (A[i]=='a') || (A[i]=='A') || (A[i]=='А')) && (a==-1))

   {

    a=i;

    cout<<"ОБНАРУЖЕНА БУКВА А !!!"<<endl;

   }

  if(((A[i]=='в') || (A[i]=='v') || (A[i]=='В') || (A[i]=='V')) && (v==-1))

   {

    v=i;

    cout<<"ОБНАРУЖЕНА БУКВА В или V !!!"<<endl;

   }

  cout<<"A["<<i<<"]="<<A[i]<<"   ";

  cout<<"a="<<a<<"   "<<"v="<<v<<endl;

 }

 cout<<"----------------------------"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<endl;

 if ((a!=-1) && (v!=-1))

 {

   cout<<"Текст между буквами А и В"<<endl;

 for(i=a+1;i!=v;i++)

  {

   cout<<A[i];

  }

 }

 else

 {

  cout<<"В тексте нет \"границ(ы)\" А или В:"<<endl;

 }

 cout<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<"\n"<<endl;

 system("pause");

 return 0;

}

```