Pieces =  21
cksum.aa = 3421431865 240640
cksum.ab = 4084750706 240640
cksum.ac = 3485416203 240640
cksum.ad = 265436758 240640
cksum.ae = 3057500296 240640
cksum.af = 748123005 240640
cksum.ag = 973898249 240640
cksum.ah = 4246832281 240640
cksum.ai = 1390207453 240640
cksum.aj = 2578554401 240640
cksum.ak = 2734107310 240640
cksum.al = 800501728 240640
cksum.am = 632629101 240640
cksum.an = 1798303607 240640
cksum.ao = 2583066004 240640
cksum.ap = 1397859477 240640
cksum.aq = 717642398 240640
cksum.ar = 3025876968 240640
cksum.as = 2093168804 240640
cksum.at = 3327719177 240640
cksum.au = 3765211652 138297