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; // 0xRRGGBB - result is between 0 and 255*255*3 class main { static int rgbDistanceSquaredInt(int a, int b) { return sqrUbyte(absDiff(rgbRed(a), rgbRed(b)) + sqrUbyte(absDiff(rgbGreen(a), rgbGreen(b)) + sqrUbyte(absDiff(rgbBlue(a), rgbBlue(b))))); } static final short[] sqrUbyte_table = sqrUbyte_makeTable(); static int sqrUbyte(int ubyte) { return unsignedShortToInt(sqrUbyte_table[ubyte]); } static short[] sqrUbyte_makeTable() { short[] tbl = new short[256]; for (int i = 0; i < 256; i++) tbl[i] = (short) (i*i); return tbl; } static int absDiff(int a, int b) { return abs(a-b); } static double absDiff(double a, double b) { return abs(a-b); } static int rgbRed(int rgb) { return (rgb >> 16) & 0xFF; } static int rgbGreen(int rgb) { return (rgb >> 8) & 0xFF; } static int rgbBlue(int rgb) { return rgb & 0xFF; } static int unsignedShortToInt(short i) { return i & 0x0FFFF; } static float abs(float f) { return Math.abs(f); } static int abs(int i) { return Math.abs(i); } static double abs(double d) { return Math.abs(d); } }