UVA-1605 Building for UN （构造）

# include<iostream>
# include<cstdio>
# include<cstring>
# include<algorithm>
using namespace std;

int main()
{
    int n,flag=0;
    while(~scanf("%d",&n))
    {
        if(flag)
            printf("\n");
        flag=1;
        printf("2 %d %d\n",n,n);
        for(int i=0;i<n;++i){
            for(int j=0;j<n;++j)
                printf("%c",(i<26)?(i+‘A‘):(i-26+‘a‘));
            printf("\n");
        }
        printf("\n");
        for(int i=0;i<n;++i){
            for(int j=0;j<n;++j)
                printf("%c",(j<26)?(j+‘A‘):(j-26+‘a‘));
            printf("\n");
        }
    }
    return 0;
}