def charToUp(char):
    if char == 'a':
        return 'A'
    elif char == 'b':
        return 'B'
    elif char == 'c':
        return 'C'
    elif char == 'd':
        return 'D'
    elif char == 'e':
        return 'E'
    elif char == 'f':
        return 'F'
    elif char == 'g':
        return 'G'
    elif char == 'h':
        return 'H'
    elif char == 'i':
        return 'I'
    elif char == 'j':
        return 'J'
    elif char == 'k':
        return 'K'
    elif char == 'l':
        return 'L'
    elif char == 'm':
        return 'M'
    elif char == 'n':
        return 'N'
    elif char == 'o':
        return 'o'
    elif char == 'p':
        return 'P'
    elif char == 'q':
        return 'Q'
    elif char == 'r':
        return 'R'
    elif char == 's':
        return 'S'
    elif char == 't':
        return 'T'
    elif char == 'u':
        return 'U'
    elif char == 'v':
        return 'V'
    elif char == 'w':
        return 'W'
    elif char == 'x':
        return 'X'
    elif char == 'y':
        return 'Y'
    elif char == 'z':
        return 'Z'
smallAlpha = input()
bigAlpha = charToUp(smallAlpha)
print(bigAlpha,end='')