#include <iostream>
using namespace std;
int main()
{
for (int q=0; q<10; ++q)
{
for (int w=0; ; ++w)
{
cout << (char)(q ? q+'0' : ' ') << (char)(w+'0');
if (q == w) break;
cout << ' ';
}
cout << endl;
}
}
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