#include <stdio.h>
void horizon(int n)
{
int i;
for(i=0;i<n;i++)
}
void square(int n)
{
int i;
for(i=0;i<n;i++)
horizon(n);
}
void enix(int n)
{
int i;
for(i=1;i<=n;i++)
{
square(i);
}
}
int main()
{
enix(4);
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+Cgp2b2lkIGhvcml6b24oaW50IG4pCnsKICAgIGludCBpOwogICAgZm9yKGk9MDtpPG47aSsrKQogICAgICAgIHByaW50ZigiIyIpOwogICAgcHJpbnRmKCJcbiIpOwp9Cgp2b2lkIHNxdWFyZShpbnQgbikKewogICAgaW50IGk7CiAgICBmb3IoaT0wO2k8bjtpKyspCiAgICAgICAgaG9yaXpvbihuKTsKfQoKdm9pZCBlbml4KGludCBuKQp7CiAgICBpbnQgaTsKICAgIGZvcihpPTE7aTw9bjtpKyspCiAgICB7CiAgICAgICAgc3F1YXJlKGkpOwogICAgICAgIHByaW50ZigiXG4iKTsKICAgIH0KfQoKaW50IG1haW4oKQp7CiAgICBlbml4KDQpOwogICAgcmV0dXJuIDA7Cn0=