#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ for(char i='a';i<='z';i++ ){ cout<<i<<" "; } cout<<endl; for(char i='Z';i>='A';i--){ cout<<i<<" "; } return 0; }