#include <stdio.h>

int main ()
{
    int i;
    int max;
    max = 20;
    int fib[max];
    fib[0] = 0;
    fib[1] = 1;

    for (i = 2; i < max; i++) {
        fib[i] = fib[i - 1] + fib[i - 2];
    }
    printf ("Fibonacci sequence from 1 to %d:\n", max);
    for (i = 0; i < max; i++) {
        printf ("%d:%d ", i + 1, fib[i]);
    }
    printf ("\n");

    return 0;
}