#include <math.h>
int main(i,r,c){
for(r=0;r<24;r++){
 c=(int)(sinf(acosf(r/12.0-1))*24);
if(r==23)printf("Happy Halloween");else
for(i=0;i<24-c;i++)printf(" ");
for(i=0;i<2*c;i++)printf("%c",
((r>4&&r<8&&(i>6&&i<12||i>26&&i<32))||
(r>12&&r<21&&i>7&&i<2*c-8))?' ':'@');
 printf("\n");}}