联合国大楼

// by BNU_LZM #include<cstdio>int map[60][60];int main(){freopen("in.txt", "r", stdin);freopen("out.txt", "w", stdout);int n;scanf("%d", &n);int cnt = 0;for(int i = 1; i <= n; i++){for(int j = 1; j <= n; j++){map[i][j] = cnt;}cnt++;}printf("2 %d %d\n", n, n);for(int i = 1; i <= n; i++){for(int j = 1; j <= n; j++){if(map[i][j] < 26)printf("%c", 'a'+map[i][j]);elseprintf("%c", 'A'+map[i][j]-26);}printf("\n");}cnt = -1;for(int i = 1; i <= n; i++){cnt++;for(int j = 1; j <= n; j++){map[j][i] = cnt;}}for(int i = 1; i <= n; i++){for(int j = 1; j <= n; j++){if(map[i][j] < 26)printf("%c", 'a'+map[i][j]);elseprintf("%c", 'A'+map[i][j]-26);}printf("\n");}return 0;}