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["Competencia","Receita","Custo"]
["Janeiro",30000,20000]
["Fevereiro",20000,10000]
["Março",25000,12500]
["Abril",35000,30000]
["Maio",40000,29000]
["Junho",38000,30000]
["Julho",31000,26000]
["Agosto",28000,22000]
["Setembro",41000,25000]
["Outubro",39000,31000]
["Novembro",15000,10000]
["Dezembro",30000,15000]