b solution

#include<stdio.h>
main()
{
int a,b,i,c,count;

while(scanf("%d%d",&a,&b)!=EOF)
   {

    count=0;
    for(i=a;i<b;i++)
{
    c=i*i;
    if(c<=b){
        count++;
    }
    else
        count;

    }
    printf("%d\n",count);
   }


}