#include<iostream>
using namespace std;
class ish
{
  public:
  char data[10];
  void get_data()
  {
    cout<<"Get the pattern"<<endl;
    cin>>data;
  }
};
int main()
{
  ish pat;
  int i,c=0;
  char a,b;
pat.get_data();
cout<<"the pair of alphabet"<<endl;
cin>>a>>b;
for(i=0;pat.data[i]!='\0';i++)
{
  if(pat.data[i]==a && pat.data[i+1]==b)
  {
    c++;

  }
}
cout<<"pair has occured "<<c;
return 0;
}