Jung Hyun used 10 more than 1/4 of the 100 won coins she had at the mart, 5 less than 3/5 of the remaining coins to ride the bus, and gave 12 of the remaining coins to her younger brother. Find the number of 100 won coins that Jung Hyun had at the beginning when the number of coins she had at the end was 13.
13 12 [OP_ADD] 5 [OP_SUB] 1 3/5 [OP_SUB] [OP_DIV] 10 [OP_ADD] 1 1/4 [OP_SUB] [OP_DIV]
var_a = 13
var_b = 12
var_c = var_a + var_b
var_d = 5
var_e = var_c - var_d
var_f = 1
var_g = 0.6
var_h = var_f - var_g
var_i = var_e / var_h
var_j = 10
var_k = var_i + var_j
var_l = 1
var_m = 0.25
var_n = var_l - var_m
var_o = var_k / var_n
print(int(var_o))