Project Euler #92: Square digit chains

Hacker
Rank
Score
1561
flag of Russia
25.00
1562
flag of Australia
25.00
1563
flag of Sri Lanka
25.00
1564
flag of United States
25.00
1565
flag of India
25.00
1566
flag of Poland
25.00
1568
flag of India
25.00
1569
flag of India
25.00
1571
flag of India
25.00
1572
flag of United States
25.00
1573
flag of United States
25.00
1575
flag of India
25.00
1576
flag of Bulgaria
25.00
1577
flag of Turkey
25.00
1578
flag of China
25.00
1580
flag of Viet Nam
25.00
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