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 was the first episode of Series and the {{#switch:{{#expr: {{{{number}}} - {{#switch:{{{series}}}|1 = 0|2 = 15|3 = 30|4 = 40|5 = 52|6 = 65|7 = 80|8 = 104|9 = 128|10 = 152|11 = 176|12 = 200|13 = 226|14 = 254|15 = 284|16 = 320|17 = 360|18 = 400|19 = 446|20 = 493|21 = 538|22 = 586|23 = 634|24 = 682|25 = 731|26 = 778}}}}|1 = first|2 = second|3 = third|4 = fourth|5 = fifth|6 = sixth|7 = seventh|8 = eighth|9 = ninth|10 = tenth|11 = eleventh|12 = twelvth|13 = thirteenth|14 = fourteenth|15 = fifteenth|16 = sixteenth|17 = seventeenth|18 = eighteenth|19 = ninteenth|20 = twentieth|21 = twenty-first|22 = twenty-second|23 = twenty-third|24 = twenty-fourth|25 = twenty-fifth|26 = twenty-sixth|27 = twenty-seventh|28 = twenty-eighth|29 = twenty-ninth|30 = thirtieth|31 = thirty-first|32 = thirty-second|33 = thirty-third|34 = thirty-fourth|35 = thirty-fifth|36 = thirty-sixth|37 = thirty-seventh|38 = thirty-eighth|39 = thirty-ninth|40 = fortieth |41 = forty-first|42 = forty-second|43 = forty-third|44 = forty-fourth|45 = forty-fifth|46 = forty-sixth|47 = forty-seventh|48 = forty-eighth|49 = forty-ninth|50 = fiftieth}} episode of Casualty overall.