#include<iostream> #include<cstdio> //scanf()\printf() #include<cstring> #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int a[101],n,x; cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]; } cin>>x>>a[x]; cin>>a[x]; for(int i=1;i<=n;i++){ cout<<a[i]; } return 0; }