For a group of data x1, X2, X3, X4 composed of positive integers, the average and median are 2, and the standard deviation is 1, then this group of data is___ (from small to large)

For a group of data x1, X2, X3, X4 composed of positive integers, the average and median are 2, and the standard deviation is 1, then this group of data is___ (from small to large)

Let's set x1 ≤ x2 ≤ x2 ≤ x3 ≤ x4, x1, X2, X3, X4 ∈ n *, according to the meaning of the topic, we get X1 + x2 + X3 + X3 + X4 = 8, s = 14 [(x1-2) 2 + (x2-2) 2 + (x2-2) 2 + (x2-2) 2 + (x3-2) 2 + (x3-2-2) 2 + (x2-2) 2 + (x3-2-2) 2 + (x3-2) 2 + (x3-2) 2 + (x3-2-2) 2 + (x3-2) 2 (x4-2) 2 < 4, then X4 < 4, combined with X1 + x2 + x2 + X3 + X3 + X3 + X3 = 8, the median is 2, and the median is 2, can only be X1 = 1, only X1 = 1, X3 = 1, X3 = 1, X3 = 1, X3 = 3, this group of data so the answer is: 1, 1, 3, 3