NOIP1996复赛 普及组 第二题 python

http://noi.openjudge.cn/ch0108/02/

"""
NOIP1996复赛 普及组 第二题 python

1.8编程基础之多维数组 02 同行列对角线的格子
http://noi.openjudge.cn/ch0108/02/

"""

n,x,y=map(int,input().split())

for i in range(1,n+1):
            print("(%d," %x,end='')
            print("%d)" %i,end=' ')

print()
#print("n")

for i in range(1,n+1):
            print("(%d," %i,end='')
            print("%d)" %y,end=' ')

print()
#print("n")


for i in range(1,n+1):
            for j in range(1,n+1):
                        if (i-j)==(x-y):

                                    print("(%d," %i,end='')
                                    print("%d)" %j,end=' ')
print()
#print("n")

for i in range(1,n+1):
            for j in range(1,n+1):
                        if (i+j)==(x+y):
                                    print("(%d," %j,end='')
                                    print("%d)" %i,end=' ')
print()
#print("n")