Pieces =  7
cksum.aa = 582571922 240640
cksum.ab = 3700625363 240640
cksum.ac = 43369826 240640
cksum.ad = 1810005062 240640
cksum.ae = 975291043 240640
cksum.af = 2617495829 240640
cksum.ag = 2988294512 159051