#include <stdio.h> 
 #include <conio.h> 
 main () { 
     int c,i; 
     int a=1; 
     int b=2; 
     printf ("%d\n%d\n",a,b); 
     for (i=1;i<19;i++){ 
         c=a+b; 
         printf ("%d \n",c); 
         a=b; 
         b=c; 
         } 
         getch (); 
         return (0); 
         }