public class Test4
{ static char[] ch;
static int index=0;
static int b_num=0;
static int i_num=0;
static int n_num=0;
static int num=0;
public static void main(String[] args)
{
System.out.println(getNum("iinbinbinginng"));
}
public static int getNum(String str)
{
ch=str.toCharArray();
for (int i = 0; i < ch.length; i++)
{
switch (ch)
{
case 'b':
b_num++;
break;
case 'i':
i_num+=b_num;
break;
case 'n':
n_num+=i_num;
break;
case 'g':
num+=n_num;
break;
default:
break;
}
} return num
}
}
