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img{width:100%;display:block;border-radius:var(--cf-radius)}.level8-marker{position:absolute;width:2.4%;height:3.2%;border-radius:0%;background:rgba(220,38,38,.6);border:1px solid #dc2626;transform:translate(-50%,-50%);pointer-events:none}.noscript-error{background:var(--cf-error);color:#fff;text-align:center;padding:14px 20px;font-size:14px;font-weight:600}.problem-statement{margin:-6rem auto}@media(width <= 720px){.problem-statement{margin-top:-2rem}}.problem-statement{font-size:14px;color:#222;font-family:helvetica neue,Helvetica,Arial,sans-serif;width:100%}.problem-header{text-align:center;margin:0 0 1em}.problem-header .problem-title{text-align:center;font-size:150%;margin:0 0 .5em}.problem-header .problem-property{margin:0 auto}.problem-section-title{font-size:115%;font-weight:700;margin:0}.problem-samples{font-size:.9em}.problem-statement p{font-size:1em;line-height:1.4em;margin:0 0 1em}.problem-statement a{color:#4d87c7;background:0 0;text-decoration:none}.problem-statement a:hover,.problem-statement a:focus{background-color:#800;color:#fff;text-decoration:none}.problem-samples .input,.problem-samples .output{border:1px solid #888}.problem-samples .output{margin-bottom:1em;position:relative;top:-1px}.problem-samples .sample-title{font-size:1.3em;padding:.25em;border-bottom:1px solid #888;text-transform:lowercase;font-weight:700;font-family:Consolas,lucida console,andale mono,bitstream vera sans mono,courier new,Courier,monospace;margin:0}.problem-samples pre{line-height:1.25em;padding:.25em;margin:0;background-color:#efefef;color:#800}