Find the "C"

THESE ARE TOUGH! At first you'll think the C in the first group and the 6 in the second group are not there, but I assure you they are. The same with finding the N in the third group. Have fun.Can you find the C?

OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOCOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

you've found the C..........Find the 6!
999999999999999999999999999999
999999999999999999999999999999
999999999999999999999999999999
999999999999999999999999999999
999999999999999999999999999999
999999999999999999999999999999
999999999699999999999999999999
999999999999999999999999999999
999999999999999999999999999999
999999999999999999999999999999
999999999999999999999999999999

Once you've found the 6...Find the N! (it's hard!!)
MMMMMMMMMMMMM
MMMMMMMMMMMMM
MMMMMMMMMMMMM
MMMMMMMNMMMMM
MMMMMMMMMMMMM
MMMMMMMMMMMMM
MMMMMMMMMMMMM
MMMMMMMMMMMMM
MMMMMMMMMMMMM
MMMMMMMMMMMMM

Source: Email