There is a sign in the shape of a square with a side of 90 centimeters (cm). If you decide to hang small light bulbs every 3 centimeters (cm) along the edges of this sign, how many light bulbs will you need in total?
90 4 [OP_MUL] 3 [OP_FDIV]
var_a = 90
var_b = 4
var_c = var_a * var_b
var_d = 3
var_e = var_c // var_d
print(int(var_e))