a: /_______/ + 49
b: /_______/ suma: 933
c: /_______/_______/_______/_______/_______/_______/ + 4
933 - 49 - 4 = 880
880 : 8 = 110 (un segment)
a: 110 + 49 = 159
a = 159
b = 110
c= 6 x 110 + 4 = 660 + 4 = 664
c = 664
Verificare: a + b + c = 159 + 110 + 664 = 933