#include <iostream>
using namespace std;
int main() {
string s1;
string s2;
cin>>s1;
cin>>s2;
int i,j,k,count=0;
for(i=0;i<s1.length();i++)
{
if(s2[0]==s1[i]&&s2[1]==s1[i+1])
{
k=i;count=0;
for(j=0;j<s2.length();j++)
{
if(s1[i]==s2[j]&&i<s1.length())
{
count++;
i++;
}
else
{
break;
}
}
i--;
if(count==s2.length())
{
cout<<"index is "<<k<<"\n";
}
}
}
return 0;
}
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