1️⃣ 2️⃣ 0️⃣ 3️⃣ 4️⃣ 5️⃣ 6️⃣ 7️⃣ 8️⃣xxxxx

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1397 ← → 1400

1399 AN Exemplum merearModus 4

1269 ⟽ AN 4 ⟾ 1560 xxxxx ⏹️ ↘️