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functionmarsExploration(s){// Write your code hereif(!s)return0;constmissingArr=[]leti=1;for(letcharofs){if(i===1){if(char!=='S'){missingArr.push(char)}}elseif(i===2){if(char!=='O'){missingArr.push(char)}}elseif(i===3){if(char!=='S'){missingArr.push(char)}}if(i%3===0){i=1}else{i+=1}}returnmissingArr.length;}
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Mars Exploration
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