#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(){ char n,m; for(n='a';n<='z';n++) cout<<n<<endl; for(m='Z';m<='A';m--) cout<<m<<endl; return 0; }