x=input() #x 是一个字符串 以回车键结尾
x=int(x) #X转为整数 float(x)
#if 三种用法
if x>0:
print('x>0')
if x>0:
print('x>0')
elif x<1 and x>0:
print('0<x<1')
else :
print('x>=1 or x<=0')
if x>0:
print('x>0')
else:
print('x<=0')
#for
#range(start, end, sp) range(5):0.1.2.3.4
#range(1,5) : 1 2 3 4
#range(5,0,-1): 5 4 3 2 1
for i in range(5,0,-2):
print(i)
for i in range(1, 5, 2):
print(i)
for i in range(1,10):#1->9
for j in range(1,10):# 1->i 1->1 1->2 1->3
print(i,'*',j,'=',i*j, end=' ')
print()