#include <stdio.h>
#include<string.h>
int number(char a[],int b)
{
int x[1000];
int p,q=1;
for(int i=0;i<b;i++)
{
q=1;
p=strlen(a);
if(p==1)
{
return 100;
}
for(int j=0;j<p;j++)
{
x[j]=a[j]-'0';
q*=x[j];
}
sprintf(a,"%d",q);
}
if(strlen(a)==1)
{
return q;
}
else
{
return 100;
}
}
int main() {
int a,b,c,p,w=0;
char x[1000];
int o[1000];
scanf("%d %d %d",&a,&b,&c);
for(int i=a;i<=b;i++)
{
sprintf(x,"%d",i);
p=number(x,c);
if(p<10)
{
o[w]=i;
w++;
}
}
printf("%d\n",w);
for(int i=0;i<w;i++)
{
printf("%d\n",o[i]);
}
}
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