@wryl me: eating plasticine.
you: doing kickflips on an overboard.

:: c c > done.
:: b b > c
:: a a > b
:: a > a a
:: b > b a
:: c > c a

AC 7 a

7 × 49/7 = 49, a a
49 × 5/49 = 5, b
5 × 35/5 = 35, b a
35 × 49/7 = 245, b a a
245 × 5/49 = 25, b b
25 × 2/25 = 2, c
2 × 14/2 = 14, c a
14 × 49/7 = 98, c a a
98 × 5/49 = 10, c b
10 × 35/5 = 70, c b a
70 × 49/7 = 490, c b a a
490 × 5/49 = 50, c b b
50 × 2/25 = 4, c c
4 × 3/4 = 3, done.