, fscanf. 3, , :
// id is OK as os
int id[36] = {0};
// make first_name and last_name arrays of arrays
char first_name[36][36];
char last_name[36][36];
int i = 0;
while (fscanf(fd, "%d, %35[^,], %35s", &id[i], first_name[i], last_name[i]) == 3) {
i++;
if (i == 36) {
break;
}
}
fscanf , int, , 35 , 35 .