85分萌新求调

#include<bits/stdc++.h>
#define int long long
using namespace std;
inline int read()
{
    register int x=0,f=1;
    char c=getchar();
    while(c<'0'||c>'9')
    {
        if(c=='-') f=-1;
        c=getchar();
    }
    while(c>='0'&&c<='9')
    {
        x=(x<<3)+(x<<1)+(c^48); 
        c=getchar();
    }
    return x*f;
}
signed main()
{
	int l=read(),r=read(),w=read();
	int now=1,cnt=0;
	if(w==1) 
	{
		if(l==1) cout<<1;
		else cout<<-1;
		return 0;
	}
	
	while(now*w<l) now*=w;now*=w;
	if(l==1 && now!=1) {cout<<1<<" ";cnt++;} 
	if(now>=l&&now<=r){cout<<now<<' ';cnt++;}
	while(now<=r/w){now*=w;cout<<now<<' ';cnt++;}
	if(cnt==0) cout<<-1;
	return 0;
}