Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
borrow =
1. ŽØ
2. Žc
3. b
4. —Þ

ƒŒƒxƒ‹4. •ÏX
SDAL“‡‰pŒêŠwZ