Blackone

#!/usr/bin/python
# Source: 3nplus1.py
# Author: Jeffrey Cartagena
# Date: April, 29, 2009


# readFile function
def readFile(inFile):

    line = inFile.readline().rstrip()
    if not line:
        return 0

    nums = line.split()
    return nums
# End of readFile function



# iterations function
def iterations(value):
    count = 1

    while value != 1:
        if value % 2 == 0:
            value = value / 2
        else:
            value = value * 3 + 1

        count += 1

    return count
# End of iterations function



# This function call the function iterations to check
# the iterations of each number then compare them tu return the maximum
def checkIterations(flag):

    intMax = 1

    for i in range(int(flag[0]), int(flag[1])):
        temp = iterations(i)

        if temp > intMax:
            intMax = temp

    return intMax
# End of checkIterations



# writeFile function
def writeFile(flag, intMax, outFile):
    outFile.write(str(flag[0]) + " " + str(flag[1]) + " " + str(intMax) + '\n')
# End of writeFile function




# Main Routine
try:
    # Opening the files input.in, output.out
    inFile = open("input.in")
    outFile = open("output.out", 'w')
except IOError:
    raw_input("Files cannot be opened\n")
    exit
except:
    raw_input("Something unexpected happened\n")
    exit

# Variable Declaration

flag = readFile(inFile)

while flag:
    intMax = checkIterations(flag)
    writeFile(flag, intMax, outFile)
    flag = readFile(inFile)

inFile.close()
outFile.close()
raw_input("Finishing the problem\n")
# End of Main Routine