public static double comparerLong(char[] c) {
		double[] nbApparitions=new double[26];
		double s=0;
		for(int i=0;i<c.length;i++) {
			if(c[i]>=65 && c[i]<=90) {
				nbApparitions[c[i]-65]++;
				s++;
			}
			if(c[i]>=97 && c[i]<=122) {
				nbApparitions[c[i]-97]++;
				s++;
			}
		}
		double res=0;
		for(int i=0;i<26;i++) {
			res+=Math.abs((nbApparitions[i]*100/s)-FREQUENCE_LETTRE[i]);
		}
		return res;
	}