Study of console i/o - 1.
  #include <stdio.h>

int main(void)
{
int num;
char ch;

printf("Enter a number : ");
scanf("%d", &num);

fflush(stdin);

printf("Enter a character : ");
scanf("%c", &ch);

printf("\n%d %c", num, ch);


/* char firstName[30], lastName[30];

printf("\nFirst name :");
scanf("%s", firstName);

fflush(stdin);

printf("\nSurname :");
scanf("%s", lastName);

printf("\nFull name : %s %s", firstName, lastName);
*/
return 0;
}