a=[20,17,9,13,5,6]
n=len(a)
for i in range(0,5):
    for j in range(0,5):
        if a[j]>a[j+1]:
            a[j],a[j+1]=a[j+1],a[j]
    print(a)
# a = 10
# b = 5
# c = 0
# c = a
# a = b
# b = c
# print(a,b)