var a=[],i,j,s='',k=0;
for(var i=0;i<4;i++)
{
s=readline().split(" ");
a[i]=[];
for(var j=0;j<s.length;j++)
{
a[i][j]=s[j];
}
}
int col=a[3][0].length;
//print(a.length);
//print();
s='';
/*for(i=0;i<a[i].length;i++)
{
k++;
if(k%2)
{
for(j=0;j<a.length;j++)
{
s+=a[j][i]+' ';
}
}
else
{
for(j=a.length-1;j>=0;j--)
{
s+=a[j][i]+' ';
}
}
}
print(s);
*/
for(i=0;i<a.length;i++)
{
print(a[i].length);
for(j=0;j<a[i].length;j++)
s+=a[i][j]+' ';
print(s);
s='';
}
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