label A = 1, (0)
label B = 1, (1)
label C = 1, (2)
label C = 2, (3)
backjump (3)
label C = 3, (4)
solution 1, 1, 3
label B = 2, (5)
label C = 1, (6)
backjump (0)
label A = 2, (7)
label B = 1, (8)
label C = 1, (9)
solution 2, 1, 1
label C = 2, (10)
backjump (8)
label B = 2, (11)
label C = 1, (12)
label C = 2, (13)
solution 2, 2, 2
label C = 3, (14)
Solutions:
{1, 1, 3},
{2, 1, 1},
{2, 2, 2}