####################################################
def get_min_value(arr):
    return min(arr)


####################################################
def equal(arr):
    min_value = get_min_value(arr)
    totals_table = []

    for index in range(0, len(arr)):
        to_compute = arr[index]
        totals_table.append(calculate(to_compute, min_value))

    # Tabulate results
    totals_final = []

    for outer in range(0,5):
        tally = 0
        for index in range(0, len(totals_table)):
            tally += totals_table[index][outer]
        totals_final.append(tally)

    return min(totals_final)


####################################################
def calculate(element, min_val):
    num_rebase_const = 4
    totals = []

    for subtractor in range(0, num_rebase_const + 1):
        baseline = min_val - subtractor
        dist = element - baseline
        totals.append(apply_formula(dist))

    return totals


####################################################
def apply_formula(value):
    return int(value / 5) + int((value % 5) / 2) + int((value % 5) % 2)