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8604
Sum and product of real numbers
8605
Sum of real numbers
8606
Sum of some real numbers
8607
Sum of squares of digits
8608
sgn function
8610
Previous and next letter
8611
Water and Ice
8612
Conditional statement - 4
8613
Conditional statement - 5
8614
Inside the interval
8615
Outside the interval
8618
Four-digit palindrom
8620
Three identical digits
Very easy
8621
Two identical digits
Very easy
8624
At least two equal digits
8625
Delete one digit
Very easy
8626
Two digits in a row
8627
Sum of neighbors
Very easy
8628
All digits are even
8629
At least one odd
8630
Maximum digit in a number
8631
Number of maximal digits
8632
Number of odd digits
8638
Append three
8639
Append three to positive integer
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86