#include <iostream>
using namespace std;
int main() {
int arr[3]={2,3,4};
for(int i=0;i<3;i+=2)
{
if((i+1)<3)
{
swap(arr[i],arr[i+1]);
}
}
for(int i=0;i<3;i++)
{
cout<<" "<<arr[i];
}
return 0;
}
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