+145 +145 +1475 +1475 +1348 +1475 Dec 22, 2023
+1475 +1756 +1756 +1756 +27 +1887 +27 +1887 +1887 In Ms. Q's deck of cards, every card is one of four colors (red, green, blue, and yellow), and is labeled with one of seven numbers ($1,$ $2,$ $3,$ $4,$ $5,$ $6,$ and $7$). Among all the cards of each color, there is exactly one card labeled with each number.
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