import math
A = 5
B = 12
C = 3
A1 = 0
B1 = 0
C1 = 0
print("A=")
print(A + B % 10 + C % 10)
print("B=")
A1 = A + B % 10 + C % 10
print(A1 / 5 % 3 + C * 2)
print("C=")
B1 = A1 / 5 % 3 + C * 2
print((B1 + C / 3) + 8)
print("A=")
C1 = (B1 + C / 3) + 8
print((50 - (A1 + B1 + C1)) / (A1 - B1) - 1)