% this problem is not guaranteed solvable
Find the sum of the elements in the "second" diagonal
Magic is simple (for beginners)
Determine the number of odd integers in a vector
frame of the matrix
Decrypt the cypher using XOR encryption (for beginners)
BLOCK x3 (Version 3)
Negation and new variables
BLOCK x3 (Version 4)
Clear all empty variables from the workspace
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