1 2 3 4 5
input, Placeholder:0, TF_FLOAT, [1, 1, 1, 1] input, Placeholder_1:0, TF_FLOAT, [1, 1, 1, 2] input, Placeholder_2:0, TF_FLOAT, [1, 1, 1, 3] input, Placeholder_3:0, TF_FLOAT, [1, 1, 1, 4] output, concat_1:0, TF_FLOAT, [1, 1, 1, 10]