import sys
a=[]
mx=0
while True:
try:
i=input()
start=0
end=len(i)-1
while i and i[start]==' ':
start+=1
while i and i[end]==' ':
end-=1
mx=max(mx,end-start+1)
a.append(i[start:end+1])
except:
break
print('*'*(mx+2))
c=0
for i in a:
print('*',end='')
if (mx-len(i))%2==0:
print(' '*((mx-len(i))//2),end='')
print(i,end='')
print(' '*((mx-len(i))//2),end='')
elif (mx-len(i))%2!=0 and c%2==0:
print(' '*((mx-len(i))//2),end='')
print(i,end='')
print(' '*(((mx-len(i))-((mx-len(i))//2))),end='')
c+=1
elif (mx-len(i))%2!=0 and c%2==1:
print(' '*(((mx-len(i))-((mx-len(i))//2))),end='')
print(i,end='')
print(' '*((mx-len(i))//2),end='')
c+=1
print('*')
print('*'*(mx+2))
// Hydro submission #6411678186e4667c8fe2e831@1678862210157
#include <bits/stdc++.h>
using namespace std;
char s[1005][1005];
string t[1005];
int n = 1, maxlen;
bool delta;
int main() {
ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
char ch; int l = 0;
do {
l = 0;
do {
ch = getchar();
if(ch == '\n' || ch == EOF) break;
t[n].insert(t[n].end(), 1, ch);
} while(ch != '\n' && ch != EOF);
++n;
}
while(ch != EOF);
--n;
--n;
//cout << strlen(s[1]) << endl;
for(int i = 1; i <= n; ++i) if(t[i].length() > maxlen) maxlen = t[i].length();
for(int i = 1; i <= maxlen + 2; ++i) cout << "*";
cout << endl;
for(int i = 1; i <= n; ++i) {
cout << "*";
if((maxlen & 1) != (t[i].length() & 1)) {
for(int j = 1; j <= (maxlen - t[i].length()) / 2 + delta; ++j) cout << " ";
cout << t[i];
for(int j = 1; j <= (maxlen - t[i].length()) / 2 + !delta; ++j) cout << " ";
delta = !delta;
}
else {
for(int j = 1; j <= (maxlen - t[i].length()) / 2; ++j) cout << " ";
cout << t[i];
for(int j = 1; j <= (maxlen - t[i].length()) / 2; ++j) cout << " ";
}
cout << "*" << endl;
}
for(int i = 1; i <= maxlen + 2; ++i) cout << "*";
cout << endl;
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