Răspuns:
123=1x10^2+2x10^1+3x10^0
4089=4x10^3+0x10^2+8x10^1+9x10^0
1930=1x10^3+9x10^2+3x10^1+0x10^0
428=4x10^2+2x10^1+8x10^0
7a4b=7x10^3+ax10^2+4x10^1+bx10^0
Abcabc=ax10^5+bx10^4+cx10^3+ax10^2+bx10^1+cx10^0
Sper ca te ajuta!
