def funA1():
    return 'data_set/An33k6.txt',33
def funA2():
    return 'data_set/An34k5.txt',34
def funA3():
    return 'data_set/An36k5.txt',36
def funA4():
    return 'data_set/An39k6.txt',39
def funA5():
    return 'data_set/An60k9.txt',60
def funA6():
    return 'data_set/An62k8.txt',62
def funA7():
    return 'data_set/Bn31k5.txt',31
def funA8():
    return 'data_set/Bn34k5.txt',34
def funA9():
    return 'data_set/Bn39k5.txt',39
def funA10():
    return 'data_set/Bn41k6.txt',41
def funA11():
    return 'data_set/Bn44k7.txt',44
def funA12():
    return 'data_set/Bn50k7.txt',50
def funA13():
    return 'data_set/Bn50k8.txt',50
def funA14():
    return 'data_set/Pn20k2.txt',20
def funA15():
    return 'data_set/Pn21k2.txt',21
def funA16():
    return 'data_set/Pn22k2.txt',22
def funA17():
    return 'data_set/Pn45k5.txt',45
def funA18():
    return 'data_set/Pn55k8.txt',55
def funA19():
    return 'data_set/Pn76k4.txt',76
def funA20():
    return 'data_set/Pn76k5.txt',76