O programing

#include<stdio.h>
void main(){
int i;
for(i=1;i<=15;i++){
if((i<=5||(i>10&&i<=15))&&(i%2==1)){
printf("0");
}
else if((i>=6&&i<=10)&&(i%2==0){
    printf("O");}
else{
printf(" ");
}
if(i%5==0)
{printf("\n");}
     }
  }