Ji-hoon made a mistake while calculating and subtracted 7 from a number instead of multiplying by 7, and it became 0.45. Find out the answer Jihoon was originally looking for.
0.45 7 [OP_ADD] 7 [OP_MUL]
var_a = 0.45
var_b = 7
var_c = var_a + var_b
var_d = 7
var_e = var_c * var_d
print('{:.2f}'.format(round(var_e+1e-10,2)))