220222

'''
a,d,n=input().split()
x=int(a)+int(d)*(int(n)-1)
print(x)
'''
'''
a, d, n = input().split()
a = int(a)
d = int(d)
n = int(n)

for i in range(n-1):
    a = a + d

print(a)
'''
'''
a,r,n=input().split()
x=int(a)*(int(r)**(int(n)-1))
print(x)
'''
'''
a,r,n=input().split()
a=int(a)
r=int(r)
n=int(n)
for i in range(n-1):
    a=a*r
print(a)
'''
'''
a,m,d,n=input().split()
a=int(a)
m=int(m)
d=int(d)
n=int(n)
for i in range(n-1):
    a=a*m+d
print(a)
'''
'''
n = int(input())
a=0
for i in range(1, n+1):
    a = a+i
print(a)
'''
'''
n=int(input())
a=0
for i in range(1,n+1):
    if i%2==0:
        a=a+i
print(a)
'''
'''
a,b=input().split()
a=int(a)
b=int(b)
x=0
for i in range(a,b+1):
    if i%3==0:
        x=x+i
print(x)
'''
'''
a,b,c,n=input().split()
a=int(a)
b=int(b)
c=int(c)
n=int(n)
for i in range(n-1):
    a=(a*b)+c
print(a)
'''
'''
n=int(input())
for i in range(1, n+1):
    if n%i==0:
        print(i,end=' ')
'''