01  #include <stdio.h>
02  #include <math.h>
03  
04  int main()
05  {
06    int number = -1464;
07  
08    printf("number: %d  absolute value: %dn", number, abs(number));
09    return 0;
10  }

 OUTPUT :
 
 number: -1464  absolute value: 1464