put the stages of cell cycle in order from beginning to end

1 G2 (cell prepares to divide)
2 G1 (cell increases in size)
3 M (mitosis, cell divides)
4 S (cell copies its DNA)

1 G1 (cell increases in size)

2 S (cell copies its DNA)
3 G2 (cell prepares to divide)
4 M (mitosis, cell divides)