The Rainbow Connection

(−2 +3 +1 +3 +1 +3)

(−3 +2 −5 −2 −2)

(+1 −1 +4 −1 +3 −1)

(−1 −1 −3 −2)

(+3 −1 −2 −5 0)

(−3 −1 0 +1)

(−3 −1 −5 +4 0)