There is a playground in the shape of an equilateral triangle with a side length of 10 meters (m). If street lights are installed at intervals of 3 meters (m) around the playground, find how many street lights have to be installed in all.
10 3 [OP_MUL] 3 [OP_FDIV]
var_a = 10
var_b = 3
var_c = var_a * var_b
var_d = 3
var_e = var_c // var_d
print(int(var_e))