j;
main(){
\x09int num,i;
\x09scanf("%d",&num);
\x09int ges = (num-2)*2+1;
\x09int empty;
\x09for (; j < num-1; ++j){
\x09\x09empty = (ges - (j*2+1))/2;
\x09\x09for (i=0; i < empty; ++i){
\x09\x09\x09printf(" ");
\x09\x09}
\x09\x09for (i = 0; i < j*2+1; ++i){
\x09\x09\x09printf("*");
\x09\x09}
\x09\x09printf("\n");
\x09}
\x09for (i = 0; i < (ges-3)/2; ++i){
\x09\x09printf(" ");
\x09}
\x09printf("G*F");
}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).