#include<bits/stdc++.h>
using namespace std;
char s[1001];
int n;
int main()
{
    cin>>n;
    for (int i=1;i<=n;i++)
    {
        cin>>s[i];
        if (isdigit(s[i]))
            s[i]='*';
        else if (isupper(s[i]))
            s[i]=s[i]+97-65;
        else
            s[i]=s[i]-97+65;
    }
    for (int i=1;i<=n;i++)
        cout<<s[i];
    return 0;
}