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s = "hello world"
print s.index("e")

def palindrome(s):
    s = s[0:len(s)/2]
    for a in range(0, len(s)):
        if s[a] != s[-a-1]:
            print "not palindrome"
            return
    print "is palindrome"
palindrome(s)

def mysort(l):
    sorted_list = []
    while len(l) > 0:
        a = 0
        for b in l:
            if l[a] == min(l):
                sorted_list.append(l.pop(a))
            a += 1
    print sorted_list
    return sorted_list
l = [4,7,2,5,8,5]
mysort(l)

def palindrome(s):
    s = s.lower()
    s = s.replace(' ', '')
    left = 0
    for a in s:
        right = (left+1)*-1
        if s[left] != s[right]:
            print "not palindrome"
            return
        left += 1
    print "is palindrome"
    
s = "Race car"
palindrome(s)

def median(l):
    l = mysort(l)
    print l
    if len(l) % 2 == 0:
        median = float(sum(l[len(l)/2-1:len(l)/2+1])) / 2
    else:
        median = l[(len(l)-1) / 2]
    print median
b = [4,6,5,7]
median(b)

def mode(l):
    mode = [1]
    for index, item in enumerate(l):
        if l.count(item) > mode[0]:
            mode[0] = item
            print l.count(mode[0])
            l.pop(index)
            print l
    count = l.count(mode[0])       
    for index, item in enumerate(l):
        if l.count(index) == count:
            mode.append(item)
    print mode
    
    
nl = [2,3,3,3,3,7,7,7,7,3]
mode(nl)

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