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<problem size="7" name="Number Place" author="Number Place Generator"><question difficult="0">0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0</question><constraint diagonal="off"><group block="on">1 1 1 2 3 3 3 1 1 1 2 4 3 3 1 2 2 2 4 3 3 2 2 4 4 4 5 5 6 6 4 5 5 5 7 6 6 4 5 7 7 7 6 6 6 5 7 7 7</group></constraint><answer>0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0</answer><hint>1 0 1 0 1 0 1 0 1 0 0 0 1 0 1 0 0 1 0 0 1 0 0 1 0 1 0 0 1 0 0 1 0 0 1 0 1 0 0 0 1 0 1 0 1 0 1 0 1</hint><hidden>0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0</hidden></problem>