r1, line 1
r2, line 2
r0, line 3
r9, line 4
r9, line 5
r3, line 6
r6, line 7
r3, line 8
r3, line 9
r6, line 10
r6, line 11
r0, line 6
r1, line 9
r8, line 15
r8, line 16
