#include <iostream>
using namespace std;
int main() {
cout << "Hello world!!87878!" << endl;
int param[4] = {1,3,5,7};
int i,j,k,l,m;
int count = 1;
for(i=0;i<10;i++)
{
if (i==0)
{
count = 4;
}
else
{
count = count*4;
}
//for(j=0;j<4;j++)
//{
//for(k=0;k<4;k++)
//{
//for(l=0;l<4;l++)
//{
//count++;
//cout << param[i] << param[j] << param[k] << param[l] << endl;
//}
//}
//}
}
cout << count << endl;
return 0;
}
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