Pieces =  18
cksum.aa = 3310014246 1457152
cksum.ab = 3973174765 1457152
cksum.ac = 1094436723 1457152
cksum.ad = 407581152 1457152
cksum.ae = 3107594682 1457152
cksum.af = 1290586262 1457152
cksum.ag = 366753998 1457152
cksum.ah = 2650121374 1457152
cksum.ai = 4252474084 1457152
cksum.aj = 3687442071 1457152
cksum.ak = 2779852988 1457152
cksum.al = 3918068863 1457152
cksum.am = 3599963236 1457152
cksum.an = 3824453357 1457152
cksum.ao = 930022723 1457152
cksum.ap = 942516541 1457152
cksum.aq = 1616776022 1457152
cksum.ar = 4162904607 1159412