#include<stdio.h>
#include<math.h>
int main()
{
int a, b, c, count = 0,i,e,t;
while(scanf("%d %d", &a, &b) && a>0 && b>0)
{
count = 0;
if(a>b)
{
t = a;
a = b;
b = t;
}
for(i=a;i<=b;i++)
{
c = sqrt(i);
e = c * c;
if(e == i)
{
count++;
}
}
printf("%d\n", count);
}
return 0;
}
#include<math.h>
int main()
{
int a, b, c, count = 0,i,e,t;
while(scanf("%d %d", &a, &b) && a>0 && b>0)
{
count = 0;
if(a>b)
{
t = a;
a = b;
b = t;
}
for(i=a;i<=b;i++)
{
c = sqrt(i);
e = c * c;
if(e == i)
{
count++;
}
}
printf("%d\n", count);
}
return 0;
}
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