In this challenge, your task is to input a rectangle ASCII pattern (You may assume only printable characters need to be handled, and you may assume a trailing newline or not), C4_4 symmetrify, and output it.
Here, C4_4 symmetric means symmetric under 90-degree rotation around a corner of the corner character. The corresponding "symmetrify" process is copy and rotate 90-degree clockwise three times, and then put all four copies together. For the precise arrangement, you can look at Test Cases.
Input: asdf jkl; Output: ja ks asdfld jkl;;f f;;lkj dlfdsa sk aj Input: .O. ..O OOO Output: .O.O.. ..OO.O OOOOO. .OOOOO O.OO.. ..O.O. Input: gc oo ld fe Output: gc oo ldflog feedoc codeef golfdl oo cg