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*******************************************************************************/
#include <iostream>
#include <bits/stdc++.h>
using namespace std;
 
int main()
{
    float mile = 1.609344f;
    float val = 20.0f * mile;
    for (int i = 0; i < 20; i++) {
        val += 2.0f * mile;
        printf("%i\n", (int)(val / 2.0f / mile) * 2);
    }
    for (int i = 0; i < 20; i++) {
        val -= 2.0f * mile;
        printf("%i\n", (int)(val / 2.0f / mile) * 2);
    }
    return 0;
}

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