#include <iostream>
#include <fstream>

using namespace std;
ofstream fout("bac.txt");
int n,m,k,cmmmc,m1,n1,a,b,r,x,i;

int main()
{
    cin>>n>>m>>k;
    m1=m;
    n1=n;
    while(n)
    {
        r=m%n;
        m=n;
        n=r;
    }
    cmmmc=(m1*n1)/m;
    a=1;
    for(i=1;i<=k-1;i++)
        a=a*10;

    b=a*10;
    cout<<a<<endl;
    x=cmmmc;
    while(x<a)
        x=x+cmmmc;
        cout<<b<<endl;
    while(x<=b)
    {
        cout<<x<<' ';
        x=x+cmmmc;

    }
    return 0;
}