Día = int(input("¿Qué # de día es?"))

if Día == 1:
    print("L")
elif Día == 2:
    print("M")
elif Día == 3:
    print("M")
elif Día == 4:
    print("J")
elif Día == 5:
    print("V")
elif Día == 6:
    print("S")
elif Día == 7:
    print("D")
else:
    print("Error")