Once upon a time, two friends were (26) through the desert. During some point of the (27) they had an argument, and one friend slapped the other one in the face. The one who got slapped was (28), but without saying anything, he wrote in the sand, "Today my best friend slapped me in the face." They kept on walking (29) they found an oasis, where they (30) to take a both. The one, who had been slapped, got (31) in the quicksand and started drowing, but the friend saved him. After the friend (32) from the near drowning, he wrote on a stone, "The friend who had slapped and saved his best friend asked him, "After I hurt you, you wrote in the sand and(33) you write on a stone, why?" The other friend (34), "When someone hurts us, we should write it down in sand where winds of forgiveness can erase it away. But, when someone does something good for us, we must (35) it in stone where no wind can ever erase it."
Find out the appropriate word in each case.