public String play(String me, String him){
		int myAmmo = findAmmo(me);
		int hisAmmo = findAmmo(him);
		
		//Special cases
		if(me.length() == 0){ return "R";}
		if(myAmmo > 5){ return "S"; }
		if(hisAmmo == 5 && myAmmo > 0){ return "S"; }
		if(myAmmo == 5 && hisAmmo > 0){ return "B"; }
		
		
		Random rand = new Random();
		
		int choice = rand.nextInt(4);
		if(choice == 0){ return "R";}
		else if(choice == 1){ return "B"; }
		else{
			if( myAmmo > 0){ return "S";}
			else return "R";
				
			}
		}