fi

def main():
    print("Program to count the total")
    print("of the numbers in a file.")
    print("You will be asked to enter")
    print("the name of a file.")
    print("Written by Raymond Zheng.")
    print()
    filename = input("Enter the name of a file to count: ")
    f = open(filename, "r")
    lines = f.readlines()
    total = 0
    for line in lines:
        num = ""
        for c in (line):
            if c.isdigit():
                num += c
            else:
                if len(num) > 0:
                    total += int(num)
                    num = ""
            if lines.index(line) == len(lines) - 1 and line.index(c) == len(line)-1:
                total += int(num)
    print("The original file")
    print(filename)
    print("has been counted and the sum of")
    print("all numbers is", total)
    print()

main()