#include <iostream>
using namespace std;

int main()
{
int n;
cin >> n;
for (int i = 9999; i >= 1000; i-- )
{
int cifra = i;
int x = 0;
int b = 0;
while (cifra > 0)
{
x = cifra % 10;
cifra = cifra / 10;
if (x == 0)
{
b += 6;
}
else if (x == 1)
{
b += 3;
}
else if (x == 2)
{
b += 5;
}
else if (x == 3)
{
b += 5;
}
else if (x == 4)
{
b += 4;
}
else if (x == 5)
{
b += 5;
}
else if (x == 6)
{
b += 5;
}
else if ( x == 7)
{
b += 3;
}
else if ( x == 8)
{
b += 7;
}
else if (x == 9)
{
b += 5;
}
}
if (b == n)
{
cout << i;
return 0;
}


}
cout << -1;
return 0;
}