while True:
    try:
        tekst = input()
        tekst = tekst.split()
        for slowo in tekst:
            if slowo == tekst[0]:
                print(slowo, end='')
            else:
                for litera in slowo:
                    if litera == slowo[0]:
                        print(slowo[0].upper(), end='')
                    else:
                        print(litera, end='')
        print('')
    except (EOFError):
        break

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Dzisiaj jest czwaRtek,
A jutro bedzie piatek.
a tu cos      z Malej litery