program cifra;

const nr : array[0..100] of byte = (0,1,5,2,8,3,9,2,8,7,7,8,4,7,3,8,4,1,5,4,4,5,9,6,2,7,3,6,2,1,1,2,8,1,7,2,8,5,9,8,8,9,3,0,6,1,7,0,6,5,5,6,2,5,1,6,2,9,3,2,2,3,7,4,0,5,1,4,0,9,9,0,6,9,5,0,6,3,7,6,6,7,1,8,4,9,5,8,4,3,3,4,0,3,9,4,0,7,1,0,0);

var f,g : text;
    t,i : word;
    j,x,c : byte;
    s : string[101];

begin
    nr[0] := 0; nr[1] := 1; nr[2] := 5; nr[3] := 2; nr[4] := 8; nr[5] := 3; nr[6] := 9;
    nr[7] := 2; nr[8] := 8; nr[9] := 7; nr[10] := 7; nr[11] := 8; nr[12] := 4;
    nr[13] := 7; nr[14] := 3; nr[15] := 8; nr[16] := 4; nr[17] := 1;
    nr[18] := 5; nr[19] := 4;

    assign(f,'cifra.in'); reset(f);
    assign(g,'cifra.out'); rewrite(g);

    readln(f,t);

    for i := 1 to t do begin
        readln(f,s); j := length(s);

        s := copy(s,j-1,2);
        val(s,x,j);

        writeln(g,nr[x]);
        end;

    close(f); close(g);

end.