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[null,"Jan","Feb","Mrz","Apr","Mai","Jun"]
["A",1,6,11,16,21,26]
["B",2,7,12,17,22,27]
["C",3,8,13,18,23,28]
["D",4,9,14,19,24,29]
["E",5,10,15,20,25,30]
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