beanerkc
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417sanders wrote:This problem can be solved by pre-school children in 5-10 minutes, by programmer – in 1 hour, by people with higher education … well, check it yourself!
8809=6
7111=0
2172=0
6666=4
1111=0
3213=0
7662=2
9313=1
0000=4
2222=0
3333=0
5555=0
8193=3
8096=5
7777=0
9999=4
7756=1
6855=3
9881=5
5531=0
2581=?
2581=2
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