#include
<
iostream
>
#include
<
string
>
using
namespace
std;
#define
N 1999
int
len;
char
s[
30001
];
int
main()
{
//
freopen("1098.in","r",stdin);
//
freopen("1098.out","w",stdout);
len
=
0
;
while
(scanf(
"
%c
"
,
&
s[
0
])
!=
EOF){
if
(s[
0
]
>=
'
'
)
s[
++
len]
=
s[
0
];
}
int
k
=
1
;
for
(
int
i
=
2
;i
<=
len;
++
i){
k
=
(k
+
N)
%
i;
if
(
!
k) k
=
i;
}
if
(s[k]
==
'
?
'
)
printf(
"
Yes\n
"
);
else
if
(s[k]
==
'
'
)
printf(
"
No\n
"
);
else
printf(
"
No comments\n
"
);
return
0
;
}
posted on 2009-06-12 16:58
xfstart07 阅读(230)
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