insert at nth()

#include <stdio.h>
#include <stdlib.h>

typedef struct node
{
    int age;
    struct node *next;
} Node;

Node *head;

void insert_at_nth(int ag,int pos)
{
    Node *temp = head;

    Node *new_node = (Node*) malloc(sizeof(Node));
    new_node->age = ag;
    new_node->next = NULL;

    if(pos == 1)
    {
        new_node->next = head;
        head = new_node;
        return;
    }

    pos-=2;

    while(pos--)
    {
        if(temp == NULL || head == NULL)
        {
            printf("Position is on Mars Baby!!  ('!^)\n");
            return;
        }
        temp = temp->next;
    }
    if(temp == NULL || head == NULL)
    {
        printf("Position is on Mars Baby!!  ('!^)\n");
        return;
    }
    new_node->next = temp->next;
    temp->next = new_node;
}

void print()
{
    Node *current = NULL;
    current = head;

    while(current!=NULL)
    {
        printf("%d ",current->age);
        current = current->next;
    }
}

int main()
{

    int n,age,position;
    printf("Enter how many nodes you want to create: ");
    scanf("%d",&n);
    for(int i=0;i<n;i++)
    {
        printf("Enter age : ");
        scanf("%d",&age);
        printf("Enter Position : ");
        scanf("%d",&position);
        insert_at_nth(age,position);
    }



    print();

    return 0;
}