Răspuns :
sat al doilea 257 paini al treilea 257+27=284 primul sat 257:2=128 rest1
128+257+284=669
128+257+284=669
in primul sat=284
in al doilea sat=257
in al treilea sat=128 rest 1
suma =284+257+128+1=670 .
in al doilea sat=257
in al treilea sat=128 rest 1
suma =284+257+128+1=670 .