0 1 2 2
1 2 3 2
i s _ 2
i s s 2
s s i 2
\n M i 1
_ 0 0 1
_ 0 1 1
_ a _ 1
_ i s 1
_ t e 1
0 0 1 1
2 3 \n 1
2 3 4 1
3 \n M 1
3 4 _ 1
4 _ 0 1
M i s 1
T h i 1
a _ t 1
e s t 1
h i s 1
i . \n 1
i p p 1
p i . 1
p p i 1
s _ a 1
s _ i 1
s i p 1
s i s 1
s t _ 1
t _ 0 1
t e s 1