C Store Data

#include <stdio.h>
int main(void) {
-FILE *contacts= fopen("contacts.txt","a+");
-char ch,name[100],number[100];
-while(fscanf(contacts,"%c",&ch) != EOF)
--printf("%c",ch);
-printf("Enter name: ");
-scanf("%s",name);
-printf("Enter number: ");
-scanf("%s",number);
-fprintf(contacts,"%s %s\\n",name,number);
-return 0;
}