#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() usingnamespacestd; intmain(){ char i; for(i='a';i<='z';i++) cout<<i<<" "; cout<<endl; for(i='Z';i>='A';i--) cout<<i<<" "; return0; }