Deadfish

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Problem

Implement Deadfish.

Commands: i for increment, d for decrement, s for square, o for output, h to halt.

If you decrement zero you get zero and if the result ever becomes 256 it should change to zero immediately.

Options

exec is denied

now post-mortem time, all source codes will be revealed

Sample input:_

i
o
o
s
d
o
s
s
i
s
d
o
o
d
o
d
d
i
o
d
d
o
s
s
s
o
i
i
d
d
d
o
o
d
o
d
d
o
s
s
o
i
o
d
d
d
d
d
d
d
o
o
o
d
o
d
d
o
h

Sample output:

1
1
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0

Sample input:_

i
o
i
o
i
s
o
i
s
o
d
s
o
d
d
o
d
d
o
d
d
o
s
o
d
o
i
o
i
i
o
i
i
o
i
i
o
h

Sample output:

1
2
9
100
9801
9799
9797
9795
95942025
95942024
95942025
95942027
95942029
95942031

Sample input:_

o
d
d
o
i
o
i
d
o
s
o
s
i
s
o
s
i
o
d
s
i
o
d
s
i
o
i
s
s
i
o
s
o
h

Sample output:

0
0
1
1
1
4
17
1
1
17
289

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