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<g transform="translate(101,101)">
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M0,${100 * a} C${100 * b},${100 * c} ${100 * c},${100 * b} ${100*a},0
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C${-100 * b},${-100 * c} ${-100 * c},${-100 * b} ${-100*a},0
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M0,${100 * a} C${100 * b},${100 * c} ${100 * c},${100 * b} ${100*a},0
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