dem13.n9

f = open('N9.txt')
lines = f.readlines()
f.close()
#print(lines[0], lines[1], lines[2])

def f(a):
    for i in a:
        if i < 1 or i > 8:
            return 0
    x1 = a[0]
    y1 = a[1]
    x2 = a[2]
    y2 = a[3]
    dx = abs(x1 - x2)
    dy = abs(y1 - y2)
    A = min(dx,dy)
    B = max(dx,dy)
    return A == 1 and B == 2


k = 0


for line in lines:
    a = [int(i) for i in line.split()]
    if f(a):
        k += 1
        print(a)

print(k)