x = 13
y = 5
z = x + y
print(z) # 18
x -= 5
pirnt(x) # 8
a = 1.3
b = 0o123 # 8진수
c = 0xfff123 # 16진수
print(a) # 1.3
print(b) # 83
print(c) # 16773411
# 숫자 연산(+, -, /, //, %, *, **)
a = 4
b = 5
print(a*b)
print(a**b) # 제곱
# 나눗셈
print(7/2) # 3.5
print(7%2) # 1
print(7//2) # 3
a = 1
a += 10
print(a)