#include<iostream>
using namespace std;
int main()
{
    const int N=1000;
    char a[N];
   cin.getline(a,1000); // getline(cin,a);
    for(int i=0;a[i]!='\0';i++)
        {
            if(a[i]>='a'&&a[i]<='z')
            {
                a[i]=a[i]-32;
            }
                    if(a[i]>='A'&&a[i]<='Z')
                    {
                        a[i]=(a[i]+3-'A')%26+'A';   //加3是偏移量先减去A除26使循环在26个字母之内,在加A转换字母
                    }
        }
    cout<<a;
    return 0;
}

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