Răspuns :
A+B=381
A=2XB
B=I-------I
A=I-------I--------I
381:3SEGM=127
B=127
A=127X2=254
A=2XB
B=I-------I
A=I-------I--------I
381:3SEGM=127
B=127
A=127X2=254
a+b=381
a=2b
2b+b=381
3b=381
b=381:3
b=127
a=2b=2x127=254
254+127=381(verificare)
a=2b
2b+b=381
3b=381
b=381:3
b=127
a=2b=2x127=254
254+127=381(verificare)