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4053
Turtle Knight
Easy
4054
Three ones in a row
Very easy
4055
Calculator
Very easy
4056
Smooth numbers
Very easy
4057
Cinema
Hard
4058
Knight's Move - 2
Medium
4059
License plates
Very easy
4060
Alphabetical Index
Very hard
4061
A Look at the Sky
Very easy
4062
Herbarium
Medium
4063
Preparation for the Holiday
4064
Extended Bowling Alley
4065
Broken Nail
Very hard
4066
Spirograph
4067
Electronic Hunting
Very hard
4068
Convex Hulls
Very hard
4069
Toll Roads
Very hard
4070
Convex Hull
Medium
4071
No surrender! 1
Easy
4072
No surrender! 2
Hard
4073
Staircase Patterns
Very easy
4074
Find the Median - 2
Very easy
4075
Recursive Sequence
Very easy
4076
Prime Generator
Easy
4077
Corporation Salary
Very easy
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