int pH;
scanf("%d", &pH);

if (pH >= 12)
{
    printf("Very Alkaline\n");
} 
else if (pH > 7)
{
    printf("Alkaline\n");
}
else if (pH == 7)
{
    printf("Neutral\n");
}
else if (pH > 2)
{
    printf("Acidic\n");
}
else // pH <= 2
{
    printf("Very Acidic\n");
}