$(-1)^1 - (-1)^2 - (-1)^3 - (-1)^4 - \dots - (-1)^{100} = $

$(1-2)^1 + (2-3)^2 + (3-4)^3 + \dots + (99-100)^{100} = $

$2 - 3 \times 2 - \times 3 - , \times 4 - 1 = $

$(5-2)^{27} + (7-5)^{27} + (9-10)^{55} = $

$(1-1404)(2-1404)(3-1404) \dots (1410-1404) = $