#include <stdio.h>
#include <stdlib.h>
int main(void)
{
int N,i,j;
printf("Enter N \n");
scanf("%d",&N);
if(N>2)
{
if(N%2==0)
{
printf("2");
for(i=4;i<=N;i+=2)
printf("*%d",i);
}
if(N%2!=0)
{
printf("1");
for(i=3;i<=N;i+=2)
printf("*%d",i);
}
}
else
printf("Error!");
printf("\n");
system("pause");
return 0;
}