CodingBat makeChocolate Solution

public int makeChocolate(int small, int big, int goal) {
 
  int i,j;
  for(i=0;(goal>0&&i<big);i++)
  goal-=5;
  if(goal==0) return 0;
  else if(goal<0) goal+=5;
  for(j=0;(j<small&&goal>0);j++) goal-=1;
  if(goal==0) return j;
  else return -1;
 
 
}