import java.util.*; import java.util.zip.*; import java.util.List; import java.util.regex.*; import java.util.concurrent.*; import java.util.concurrent.atomic.*; import java.util.concurrent.locks.*; import java.util.function.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.text.*; import javax.swing.table.*; import java.io.*; import java.net.*; import java.lang.reflect.*; import java.lang.ref.*; import java.lang.management.*; import java.security.*; import java.security.spec.*; import java.awt.*; import java.awt.event.*; import java.awt.image.*; import java.awt.geom.*; import javax.imageio.*; import java.math.*; import java.time.Duration; import java.lang.invoke.VarHandle; import java.lang.invoke.MethodHandles; class main { static ArrayList floatArrayToDoubleList(float[] a) { if (a == null) return null; return floatArrayToDoubleList(a, 0, a.length); } // no range checking on from/to in the interest of speed static ArrayList floatArrayToDoubleList(float[] a, int from, int to) { if (a == null) return null; ArrayList < Double > l = new ArrayList<>(to-from); for (int i = from; i < to; i++) l.add((double) a[i]); return l; }}