k = 2
xval = {}
ts = [100,200,300,400,500]
amount = len(ts)//k
print(amount)
xcounter = 0;
for x in range(k):
    xtrain = ts[:amount]
    xtest = ts[amount:]
    #print(xtrain)
    #print(xtest)
    last = ts[-amount:]
    #print(last)

    ts = last + ts
    del ts[-amount:]

    print(ts)