Problem with variable input in C program

[Zool]

I have a problem with the real variable. i can put age on the console instead of 20 in the course of the variables.

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

  int main (int arg, char * argv []) 
  ( 
  long age = 0; 
  printf ( "How old are you?"); 
  scanf ( "% ld", & age); 
  printf ( "you really  ld% year \ n", & age); 
    system ( "PAUSE"); 
    return 0; 
  )

could you help me to solve this problem please?

[Katty]

do not pass the address instead of the value of your variable

 int age = 0; 
  printf (what is your age:); 
  scanf ( "% d", & age); 
  printf ( "I% d years", age);

[Walby]

in Line 9, we should not put the ampersand to 'age' as% printf expects a value, not an address. This is what your declaration does not boot you if your variable are not declared.