Two different numbers will be used as numerator and denominator, respectively. How many improper fractions can there be when those numbers are selected from 3, 5, 7, 11, 13, and 17?
6 2 [OP_COMB]
var_a = 6
var_b = 2
var_c = 1
var_a = int(var_a)
var_b = int(var_b)
for i, elem in enumerate(range(var_b)):
    var_c = var_c * (var_a-i)
for i, elem in enumerate(range(var_b)):
    var_c = var_c / (i+1)
print(int(var_c))