Rahul Mohindar Oscillator formula. Help

Can someone explain me in deep the RMO formula?

I understand those variables:
MA = Moving Average
HHV = highest high value
LLV = lowest low value

But not sure for this one ant not at all for the next:
Close = Price at the end of the day? I presume? Im right?
C =? This C letter is my nightmare. I tried to find its meaning all over Internet in vain.

Can someone help me to understand this C value?
Thanks

Here one of the formulas of RMO I found:

SwingTrd1 = 100 * (Close - ((MA(C,2)+
MA(MA(C,2),2)+
MA(MA(MA(C,2),2),2) +
MA(MA(MA(MA(C,2),2),2),2) +
MA(MA(MA(MA(MA(C,2),2),2),2),2) +
MA(MA(MA(MA(MA(MA(C,2),2),2),2),2),2) +
MA(MA(MA(MA(MA(MA(MA(C,2),2),2),2),2),2),2)+
MA(MA(MA(MA(MA(MA(MA(MA(C,2),2),2),2),2),2),2),2)+
MA(MA(MA(MA(MA(MA(MA(MA(MA(C,2),2),2),2),2),2),2), 2),2)+
MA(MA(MA(MA(MA(MA(MA(MA(MA(MA(C,2),2),2),2),2),2), 2),2),2),2))
/10))/(HHV(C,10)-LLV(C,10));

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hi

C=closing.

johnny