Eye challenging nice email puzzles

You can use these puzzles as an email, really hard for me.....

Can you find the C? (Good exercise for the eyes!) Try solving the puzzles on the comments they seem a lil more tougher

OOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOCOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOO

Once you’ve found the C……….

Find the 6!

9999999999999999999999999999999999
9999999999999999999999999999999999
9999999999999999999999999999999999
9999999999999999999999999999999999
9999999999999999999999999999999999
9999999999999999999999999999999999
9999699999999999999999999999999999
9999999999999999999999999999999999
9999999999999999999999999999999999
9999999999999999999999999999999999
9999999999999999999999999999999999
9999999999999999999999999999999999

Once you’ve found the 6…

Find the N! (it’s hard!!)

MMMMMMMMMMMMM
MMMMMMMMMMMMM
MMMMMMMMMMMMM
MMMMMMMNMMMMM
MMMMMMMMMMMMM
MMMMMMMMMMMMM
MMMMMMMMMMMMM
MMMMMMMMMMMMM
MMMMMMMMMMMMM
MMMMMMMMMMMMM

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