#include
using namespace std;
int main()
{
int a,s,b,c,x1,x2,x3,x4,x5,x6,x7,x8;
for(a=20;;)
{s=0;
for(b=1;b
if(a%b==0)s+=1;
switch(s)
case 1:
x1=b; break;
case 2:
x2=b ;break;
case 3:
x3=b ;break;
case 4:
x4=b ;break;
case 5:
x5=b ;break;
case 6:
x6=b ;break;
case 7:
x7=b ;break;
case 8:
x8=b ;break;
}if (s>1)cout<
if (s>2)cout<
if (s>3)cout<
if (s>4)cout<
if (s>5)cout<<x6;
if (s>6)cout<<x7;
if (s>7)cout<<x8;
return 0;
}