100*8=800
800*6=4800
4800*7=33600
24686-33600=-8914
-8914+28667=19753
19753-93=19660
19660-54=19606
19606-29=19577
100*8=800
800*6=4800
4800*7=33600
24686-33600=-8914
-8914+28667=19753
19753-93=19660
19660-54=19606
19606-29=19577