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| program prefix;
type node=record
data:char;
son:integer;
jl:boolean;
er:array[1..1800]of integer;
end;
var ji,total,root,max,k:longint;
zd:array[1..1800]of node;
y1:array[1..200]of string;
ls:array[1..200000]of boolean;
s:ansistring;
flag:boolean;
procedure find(x:string;wz,c:integer);
var i:integer;
begin
for i:=1 to zd[wz].son do
begin
if zd[zd[wz].er[i]].data=x[c] then
begin
if c+1<=length(x) then find(x,zd[wz].er[i],c+1)
else begin
if zd[zd[wz].er[i]].jl then flag:=true;
exit;
end;
end;
end;
end;
procedure insert(x:string;y,z:integer);
var i:integer;
f:boolean;
begin
f:=true;
if zd[y].son=0 then
begin
inc(total);
inc(zd[y].son);
zd[y].er[zd[y].son]:=total;
zd[total].data:=x[z];
if (z+1)<=length(x) then
insert(x,total,z+1)
else begin zd[total].jl:=true;exit;end;
end
else
for i:=1 to zd[y].son do
if zd[zd[y].er[i]].data=x[z] then
begin
if (z+1)<=length(x) then
begin
insert(x,zd[y].er[i],z+1);
exit;
end
else begin zd[total].jl:=true;exit;end;
end
else begin f:=false;end;
if not f then
begin
inc(total);
inc(zd[y].son);
zd[y].er[zd[y].son]:=total;
zd[total].data:=x[z];
if (z+1)<=length(x) then
insert(x,total,z+1)
else begin zd[total].jl:=true;exit;end;
end;
end;
procedure init;
var i:longint;
te:char;
temp:ansistring;
begin
root:=1;
zd[root].data:=' ';
zd[root].son:=0;
total:=1;
ji:=1;
repeat
while not eoln(input) do
begin
read(te);
if te<>'.' then
if (te=' ') then
inc(ji)
else if te in ['A'..'Z'] then
y1[ji]:=y1[ji]+te;
end;
if eoln(input) then inc(ji);
readln;
until te='.';
max:=-1;
for i:=1 to ji do
begin
insert(y1[i],root,1);
if length(y1[i])>max then max:=length(y1[i]);
end;
s:='';
k:=0;
while not eof(input) do
begin
readln(temp);
k:=k+length(temp);
s:=s+temp;
end;
end;
procedure main;
var i,j,q,head,tail:longint;
st:string;
begin
if k>100000 then
begin
head:=k div 2;
tail:=k;
end
else
begin
head:=1;
tail:=k;
end;
for i:=head to tail do
begin
st:='';
for j:=1 to max do
begin
flag:=false;
st:=st+s[i+j-1];
find(st,root,1);
if flag then
for q:=i to i+j-1 do
ls[q]:=true;
end;
end;
for i:=head to tail do
if not ls[i] then
begin
writeln(i-1);
exit;
end;
if ls[k] then writeln(k);
end;
begin
assign(input,'prefix.in');
reset(input);
assign(output,'prefix.out');
rewrite(output);
init;
main;
close(input);
close(output);
end.
|