class Solution(object):
    def totalMoney(self, n):
        """
        :type n: int
        :rtype: int
        """
        m = 0
        total = 0
        if n <= 7:
            print("from 1")
            return (n*(n+1)) // 2
 
        else:
            for i in range(n // 7):
                num = 7 + m
                total += ((num * (num + 1)) / 2) - ((m*(m+1)) // 2)
                m += 1 
                print(i, total, m)
 
 
        if (n % 7 > 0):
            res = (n % 7) + m
            total += ((res * (res+ 1)) / 2) - ((m*(m+1)) // 2)
 
        return int(total)
 
 

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