If ω, ω2 are imaginary cube roots of unity and
1a+ω + 1b+ω + 1c+ω = 2ω2 and 1a+ω2 + 1b+ω2 + 1c+ω2 = 2ω, then 1a+1 + 1b+1 + 1c+1 is equal to: