dec = int(input(" Input number ：")) # Input 10
# Binary conversion
res_bin = bin(dec)
# To octal
res_oct = oct(dec)
# To hexadecimal
res_hex = hex(dec)
print(" Convert decimal to binary ：", res_bin) # 0b1010
print(" Decimal to octal to ：", res_oct) # 0o12
print(" Decimal to hexadecimal is ：", res_hex) # 0xa
print("=========== I'm a lovely divider ===============")
# int() Other decimal system to decimal system , The following number represents the number of hexadecimal conversion
print(" Binary conversion to decimal results in ：", int(res_bin, 2))
print(" Conversion from octal to decimal results in ：", int(res_oct, 8))
print(" Conversion from hexadecimal to decimal results in ：", int(res_hex, 16))
