#include<bits/stdc++.h>
using namespace std;
int main(){
	char i;
	for(i='a';i<='z';i++)
	cout << i << ' ';
	cout << endl;
	i = 'Z';
	while(i>='A'){
		cout << i << ' ';
		i--;}
	return 0; 
}

#include using namespace std; int main(){ char a,b; for(int i = 0;i<=25;i++){ a = 'a'+i; cout<<a<<" "; } cout<<endl; for(int v = 0;v<=25;v++){ b = 'Z'-v; cout<<b<<" "; } }

using namespace std;
int main(){
	char a,b;
	for(int i = 0;i<=25;i++){
		a = 'a'+i;
		cout<<a<<" ";
	}
	cout<<endl;
	for(int v = 0;v<=25;v++){
		b = 'Z'-v;
		cout<<b<<" ";
	}
}

#include<bits/stdc++.h> using namespace std; int main (){ cout<<"a"<<" "<<"b"<<" "<<"c"<<" "<<"d"<<" "<<"e"<<" "<<"f"<<" "<<"g"<<" "<<"h"<<" "<<"i"<<" "<<"j"<<" "<<"k"<<" "<<"l"<<" "<<"m"<<" "<<"n"<<" "<<"o"<<" "<<"p"<<" "<<"q"<<" "<<"r"<<" "<<"s"<<" "<<"t"<<" "<<"u"<<" "<<"v"<<" "<<"w"<<" "<<"x"<<" "<<"y"<<" "<<"z"<<endl; cout<<"Z"<<" "<<"Y"<<" "<<"X"<<" "<<"W"<<" "<<"V"<<" "<<"U"<<" "<<"T"<<" "<<"S"<<" "<<"R"<<" "<<"Q"<<" "<<"P"<<" "<<"O"<<" "<<"N"<<" "<<"M"<<" "<<"L"<<" "<<"K"<<" "<<"J"<<" "<<"I"<<" "<<"H"<<" "<<"G"<<" "<<"F"<<" "<<"E"<<" "<<"D"<<" "<<"C"<<" "<<"B"<<" "<<"A"; return 0; }

#include<bits/stdc++.h>
using namespace std;
int main(){
	char i;
    for(i='a';i<='z';i++)   cout << i << ' ';
    cout<<endl;
	for(i='Z';i>='A';i--)   cout << i << ' ';
	return 0; 
}

#include using namespace std; int main(){ char i,I; for(i='a';i<='z';i++) cout << i << " "; cout<<endl; for(I='Z';I>='A';I--) cout<<I<<" "; return 0; }

#include<bits/stdc++.h>
using namespace std;
int main(){
	char i;
	for(i='a';i<='z';i++)
	cout << i << ' ';
	cout << endl;
	i = 'Z';
	while(i>='A'){
		cout << i << ' ';
		i--;}
	return 0; 
}

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