# Make sure points are counterclockwise! # Assume convex. # Assume points are ordered either clockwise or counterclockwise. # Pick three points, find centroid, make sure it lies to the left of an edge import sys def left(x,y): return x[0]*y[1]+x[1]*y[2]+x[2]*y[0] - x[1]*y[0]-x[2]*y[1]-x[0]*y[2] > 0 [xc,yc,r] = list(map(int,sys.stdin.readline().split())) bound = 10**4 if (r > bound - xc) or (r > xc + bound) or (r > bound - yc) or (r > yc + bound): sys.exit(43) line = list(map(int,sys.stdin.readline().split())) n = line[0] x = [0,0,0] y = [0,0,0] for i in range(3): # assume n >= 3 x[i] = line[2*i+1] y[i] = line[2*i+2] xm = sum(x)/3 ym = sum(y)/3 if left(x,y): sys.exit(42) else: sys.exit(43)