def main():
    #recieve sentence and shift from user
    x = input("Please enter a sentence to encrypt:\n")
    shift = int(input("Please enter the size of the shift:\n"))
    #add encrypted text to new list
    txt = []
    for i in range(len(x)):
        if x[i] == '#':
            txt.append('*')
            continue
        elif i == len(x)-1 and x[i] == '!':
            continue
        elif x[i] == '?':
            continue
        #
        elif (ord('A') <= ord(x[i]) <= ord('Z')) or (ord('a') <= ord(x[i]) <= ord('z')):
            if ord(x[i]) % 2 == 0:
                y = ord(x[i])
                for j in range(0,shift):
                    if y == ord('z') or y == ord('Z'):
                        y = ord('a')
                    else:
                        y += 1
                txt.append(chr(y).lower())

            else:
                y = ord(x[i])
                for j in range(0,shift):
                    if y == ord('a') or y == ord('A'):
                        y = ord('Z')
                    else:
                        y -= 1
                txt.append(chr(y).upper())
        else:
            txt.append(x[i])
    print("".join(txt))

if __name__ == '__main__':
    main()