def binary(x):
    a=bin(x)
    a=a[0]+a[2:]
    if(len(a)==8):
        return a
    else:
        return '0'+a

s=input()
r='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
bins=''
for i in s:
    bins+=binary(ord(i))
print(bins)
temp=''
ans=''
count=0
for i in range(len(bins)):
    if((i+1)%6==0):
        temp+=bins[i]
        ans+=r[int(temp,2)]
        temp=''
    else:
        temp+=bins[i]
if(temp!=''):
    z=6-len(temp)
    temp=temp+'0'*z
    ans+=r[int(temp,2)]
print(ans)