Declension of the word "rucksack"

Singular and plural for Rucksack, m, strong declension     translation to English backpack

Singular
Plural
Singular
Nominativ (Wer? Was?)
der Rucksack
die Rucksäcke
Genitiv (Wessen?)
des Rucksackes / Rucksacks
der Rucksäcke
Dativ (Wem?)
dem Rucksack / Rucksacke
den Rucksäcken
Akkusativ (Wen? Was?)
den Rucksack
die Rucksäcke
Plural
die Rucksäcke
der Rucksäcke
den Rucksäcken
die Rucksäcke
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