  # 1,-2,3,-4,5 ESE 100 TAKK PRINT KRE


num=1
while num<=100:
    if num%2==0:
        print(num*-1)
    else:
        print(num)
    num=num+1
  # 1,-2,3,-4,5 ESE 100 TAKK PRINT KRE


num=1
while num<=100:
    if num%2==0:
        print(num*-1)
    else:
        print(num)
    num=num+1
# 1,-2,3,-4,5 ESE 100 TAKK PRINT KRE