#include <iostream> using namespace std; int main( ) {char c; while ((c=getchar( ))!=′＼n′) {if((c>=′a′ && c<=′z′) || (c>=′A′ && c<=′Z′)) {c=c+4; if(c>′Z′ && c<=′Z′+4 || c>′z′) c=c-26; } cout<<c; } cout<<endl; return 0; }