import std;

​

​

void main() {

        int len = uniform(1,257);

        float[] a = new float[len];

        float[] b = new float[len];

        a[] = 49f;

        b[] = 1f;

        //foreach(i, aa; a){a[i] -= b[i];}

        a[] -= b[];

        writeln(a);

    }