# define W 32
#endif
+#ifndef WW
#define WW (W*2)
+#endif
+
+#ifndef Wminusone
#define Wminusone (W-1)
+#endif
#ifndef uchar
#define uchar unsigned char
#define ulong unsigned long
#endif
+#define myminofthree(x,y,z) (x)<(y)?((x)<(z)?(x):(z)):(y)<(z)?(y):(z)
+
class Tools
{