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  • cdhanush057
     + 0 comments

    u just calculate the words frequency convert them to list sort them alphabetically later sort them value based return the top three items

    s = input()
    d={}
    for i in s:
        if i not in d:
            d[i]=1
        else:
            d[i]+=1
    items = list(d.items())

    items.sort()
    for i in range(len(items)):
        for j in range(len(items)-1-i):
            if items[j][1] < items[j+1][1]:
                items[j], items[j+1] = items[j+1], items[j]
    for ch, freq in items[:3]:
        print(ch, freq)