include [HTML_REMOVED]

include [HTML_REMOVED]

define MaxSize 10003

int N;
int sushu[MaxSize];

int isSushu(int x)
{
if(x == 1) return 0;
for(int i = 2; i < x; ++ i)
{
if(x % i == 0) return 0;
}

return 1;

}

int main()
{
int n;
scanf(“%d”, &n);

if(isSushu(n)) printf("%d\n", n);
else
{
    while(1)
    {
        ++ n;
        if(isSushu(n)){
            printf("%d\n", n);
            return 0;
        }
    }
}

return 0;

}