In Gethsemane Christ seemingly prays two different prayers before he prays the last one

Matthew 26:39 NIV

39 Going a little farther, he fell with his face to the ground and prayed, “My Father, if it is possible, may this cup be taken from me. Yet not as I will, but as you will.”

Matthew 26:42 NIV

42 He went away a second time and prayed, “My Father, if it is not possible for this cup to be taken away unless I drink it, may your will be done.”

Matthew 26:43 NIV

43 When he came back, he again found them sleeping, because their eyes were heavy. 44 So he left them and went away once more and prayed the third time, saying the same thing.

The third prayer is said to be similar to the previous one.Its not clear whether this refers to the first or the second prayer line?