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.*; // 0xRRGGBB class main { static int rawRGBDiff(int a, int b) { int r1 = (a >> 16) & 0xFF; int g1 = (a >> 8) & 0xFF; int b1 = a & 0xFF; int r2 = (b >> 16) & 0xFF; int g2 = (b >> 8) & 0xFF; int b2 = b & 0xFF; return Math.abs(r1-r2) + Math.abs(g1-g2) + Math.abs(b1-b2); }}