if(n==1)return "1";

string ans=countandsay(n-1),temp="";

for(int i=0;i<ans.length();i++){

int count=1;

while( i+1<ans.length() && ans[i]==ans[i+1]){i++;count++;}

temp+=count+'0';

temp+=ans[i];

}

return temp;

//program to solve count and say problem.

int n;

cin>>n;

string s = countandsay(n);

cout<<s<<endl;

return 0;

}