Răspuns :
1n _____
2n _____+1 }270
3n _____+1+1
1+1+1=3 --mai mult s segm
270-3=267
267:3segm=89--prim numar
89+1=90--2numar
90+1=91--3numar
2n _____+1 }270
3n _____+1+1
1+1+1=3 --mai mult s segm
270-3=267
267:3segm=89--prim numar
89+1=90--2numar
90+1=91--3numar