import std.stdio, std.string, std.conv, std.algorithm, std.numeric;
import std.range, std.array, std.math, std.typecons, std.container, core.bitop;

void main() {
    char[] n;
    scan(n);

    reverse(n);

    int k = n.length.to!int;

    int m3, m5;

    foreach (i; 0 .. k) {
        (m3 += n[i] - '0') %= 3;

        if (i & 1) {
            (m5 += n[i] - '0') %= 5;
        }
        else {
            (m5 += (n[i] - '0') * 4) %= 5;
        }
    } 

    debug {
        writefln("m3:%d, m5:%d", m3, m5);
    }

    if (!m3 & !m5) {
        writeln("FizzBuzz");
    }
    else if (!m3) {
        writeln("Fizz");
    }
    else if (!m5) {
        writeln("Buzz");
    }
    else {
        writeln(n.retro());
    }
}





void scan(T...)(ref T args) {
    string[] line = readln.split;
    foreach (ref arg; args) {
        arg = line.front.to!(typeof(arg));
        line.popFront();
    }
    assert(line.empty);
}



void fillAll(R, T)(ref R arr, T value) {
    static if (is(typeof(arr[] = value))) {
        arr[] = value;
    }
    else {
        foreach (ref e; arr) {
            fillAll(e, value);
        }
    }
}