#include <cstdio>

#include <algorithm>

#include <cstring>

using namespace std;

typedef unsigned long long int LL;

LL l,r;

int k;

int main()

{

    scanf("%I64d %I64d %d",&l,&r,&k);

    int cnt = ;

    LL pow = ;

    int i = ;

    while(true)

    {

        if(pow <=r && pow >=l)

        {

            printf("%s%I64d",cnt?" ":"",pow);

            cnt++;

        }

        i++;

        if(pow > r) break;

        if(r/k < pow) break;

        pow *= k;

    }

    if(cnt == ) printf("-1\n");

}

#include <cstdio>

#include <cstring>

using namespace std;

int N,n0;

char unbtf[];

int main()

{

    scanf("%d",&N);

    int flag_unb = ;

    int flag_0 = ;

    getchar();

    for(int i=;i<N;i++)

    {

        char c;

        int cnt = ,flag = ,tmp0 = ;

        while((c=getchar()) && c>='' && c<='')

        {

            if(!flag_unb) unbtf[cnt] = c;

            if((c!=''&&cnt!=) || (c!=''&&c!=''&&cnt==))

            {

                flag = ;

            }

            if(c == '') tmp0++;

            cnt++;

        }

        if(!flag_unb) unbtf[cnt] = '\0';

        if(cnt ==  && tmp0 == ) flag_0 = ;

        if(flag&&cnt>) n0 += tmp0;

        else if(!flag)flag_unb = ;

    }

    if(flag_0)

    {

        printf("0\n");

        return ;

    }

    if(flag_unb) printf("%s",unbtf);

    else printf("");

    for(int i=;i<n0;i++)

        printf("");

    printf("\n");

}