{"trustable":false,"prependHtml":"\u003cscript\u003e window.katexOptions \u003d { disable: true }; \u003c/script\u003e\n\u003cscript type\u003d\"text/x-mathjax-config\"\u003e\n MathJax.Hub.Config({\n tex2jax: {\n inlineMath: [[\u0027$$$\u0027,\u0027$$$\u0027], [\u0027$\u0027,\u0027$\u0027]],\n displayMath: [[\u0027$$$$$$\u0027,\u0027$$$$$$\u0027], [\u0027$$\u0027,\u0027$$\u0027]]\n }\n });\n\u003c/script\u003e\n\u003cscript async src\u003d\"https://mathjax.codeforces.org/MathJax.js?config\u003dTeX-AMS-MML_HTMLorMML\" type\u003d\"text/javascript\"\u003e\u003c/script\u003e","sections":[{"title":"","value":{"format":"HTML","content":" "}},{"title":"Input","value":{"format":"HTML","content":" "}},{"title":"Output","value":{"format":"HTML","content":" "}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre\u003e2\n3\n+01\n+01\n?01001\n3\n+01\n?010\n?011\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003eCase #1:\n2\nCase #2:\n1\n0\u003c/pre\u003e"}},{"title":"Hint","value":{"format":"HTML","content":""}}]}