What is the running time of the following program?

int C, N, R0, R1, I;

void A(int R)
{
     int I;
     for(I=1;I<=N;I++)
          R=R*I;
}

void B(int R)
{
     int I, J;
     J=1;
     for(I=1;I<=N;I++)
     {
          A(J);
          R=R*J;
     }
}

void main()
{
     scanf("%d",&C);
     scanf("%d",&N);
     R0=1;
     R1=1;

     if(C=='#')
          for(I=1;I<=N;I++)
               B(N);
     A(N);
}

Difficulty level
This exercise is mostly suitable for students 
O(n^3)
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