Please input an int (or control-d when done): 0
Please input an int (or control-d when done): 10
Please input an int (or control-d when done): 20
Please input an int (or control-d when done): 30
Please input an int (or control-d when done): 40
Please input an int (or control-d when done):  (The user typed a control-d.)

Here are the 5 ints that you input:
 0      0
 1     10
 2     20
 3     30
 4     40

0
10
20
30
40