Someone already answered, but here's a more condescending answer. Please do not take offense:
Open word, notepad, wordpad or whatever you like to type in. Press the key (main keyboard, not 10-key pad) with a "1" on it. You should get this:
1
Now, press and hold the button labeled "Shift" and press the same "1" key. Your document should now read:
1!
Press "Enter" twice to begin a new line with a line break in the middle.
Type "zOMG" (you are clearly shocked for this exercise) followed by a string of 7 exclamation points (Shift+1). You should have
1!
zOMG!!!!!!!
Now, press the space bar a few times and repeat, only this time, imagine that your pinky left the "Shift" button one exclamation point early (a common typing mistake). You now have
1!
zOMG!!!!!!! zOMG!!!!!!1
Now, imagine that not only are you incredibly enthusiastic in your "zOMG," requiring far more than seven exclamation points to fully convey your meaning (lets say 15), but that your "shift" button broke from the strain of repeated use after the 5th exclamation point. Start a new line (with line break) and type accordingly.
1!
zOMG!!!!!!! zOMG!!!!!!1
zOMG!!!!!1111111111
Imagine if you will, that the ten 1s are divided in groups of two and separated from the exclamation points, and the other groups of two.
zOMG!!!!!11 11 11 11 11
Here's the math part: two 1s constitute the number eleven as I'm sure you've known your whole life.
Here's the grammar part: the plural of something necessitates an "s" at the end of the word in most cases, plural of "eleven" is "elevens"
"zOMG!!!!!1111111111" can be thus abbreviated as "zOMG!!!!!ELEVENS" and still convey the same meaning. Any exclamation points following "elevens" would be if the keyboardist realized their fault and switched to the other "shift" key which is fortuitously still functional. If the keyboardist is unfortunate enough to have their "1" key break, but are still enthusiastic beyond what they have typed, they may substitute the letter "l" in place. The letter "l" would be capitalized (L) if they pressed the "Caps Lock" button before typing "OMG" to stave off "shift" button failure.
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