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#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<math.h>
int control(float e)
{ int t;
do
{
e=e-1;
}while(e>1);
if ((e==0)||(e==1)) { return 1;} else
{return -1;}
}
int main()
{
system("cls");
float n,k,j,i;
float q,w;
int u,y,r,b;
y=0;
scanf("%f",&n);
r=n*n;
for(i=1;i<n+1;i++)
{
for(j=1;j<n+1;j++)
{
for (k=2;k<n+1;k++)
{
if((i/k>=1)&&(j/k>=1)) {
if ( (control(i/k)==1) && (control(j/k)==1)){
y++;
break;
}
}
}
}
}
b=r-y;
printf("%i",b);
getch();
return 0;
}