240310

# s=0
# n=int(input())
# a=input().split()
# for i in range(n):
#     s=s+int(a[i])
# print(s)

# a,b=map(int, input().split(' '))
# if a!=0:
#     if b >=30:
#         print(a, b-30)
#     elif b<30:
#         print(a-1,b+30)
# else:
#     if b>=30:
#         print(0, b-30)
#     else:
#         print(23, b+30)

# n=int(input())
# a=1
# sum=0
# for i in range(n):
#     if a%10==1:
#         sum+=1
#         a+=1
#     else:
#         a+=1
# print(sum)

# n = int(input())
# s = (((n%10)*10+(n//10))*2)%100
# print(s)
# if s<=50:
#     print('GOOD')
# else:
#     print('OH MY GOD')

# s=0
# a=1
# n=int(input())
# for i in range(n):
#     s+=a
#     a+=1
# print(s)

# n=input()
# k=0
# for i in range(len(n)):
#     if n[k]=='t':
#         print(k+1,end=' ')
#         k+=1
#     else:
#         k+=1

# a, b= map(int, input().split())
# if b==1 or b==3 or b==5 or b==7 or b==8 or b==10 or b==12:
#     print('31')
# elif b==4 or b==6 or b==9 or b==11:
#     print('30')
# else:
#     if a%400==0 or (a%4==0 and a%100!=0):
#         print('29')
#     else:
#         print('28')

# n=int(input())
# if n%3==0:
#     print(1)
# else:
#     print(0)