import std.algorithm;
import std.array;
import std.ascii;
import std.bigint;
import std.complex;
import std.container;
import std.conv;
import std.functional;
import std.math;
import std.range;
import std.stdio;
import std.string;
import std.typecons;

auto readInts() {
        return array(map!(to!int)(readln().strip().split()));
}
auto readInt() {
        return readInts()[0];
}
auto readLongs() {
        return array(map!(to!long)(readln().strip().split()));
}
auto readLong() {
        return readLongs()[0];
}

void readlnTo(T...)(ref T t) {
    auto s = readln().split();
    assert(s.length == t.length);
    foreach(ref ti; t) {
        ti = s[0].to!(typeof(ti));
        s = s[1..$];
    }
}

const real eps = 1e-10;

long next(long s) {
    return (s*s/100)%10000;
}

void main(){
    auto d = readLong();
    foreach(i; iota(d)) {
        auto s = readLong();
        writeln("Case ", i+1, ":");
        foreach(h; iota(10)) {
            s = next(s);
            writeln(s);
        }
    }
}