def smallestCharLargerThan(keyChar,inputString):
    smallest = chr(255)
    ind = 0
    for i in range(0,len(inputString)):
        if inputString[i].lower() > keyChar.lower():
            if inputString[i].lower() <= smallest:
                smallest = inputString[i]
                ind = i
    print("In {}, the smallest character greater than {} is {} and occurs at position {}.".format(inputString, keyChar, inputString[ind], ind))