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Implement totalWaviness method in Solution class

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	`1`	`+classSolution {`
	`2`	`+publicinttotalWaviness(intnum1,intnum2) {`
	`3`	`+intcount =0;`
	`4`	`+for (inti =num1;i <=num2;i++) {`
	`5`	`+count +=calculateWaviness(i);`
	`6`	`+ }`
	`7`	`+returncount;`
	`8`	`+ }`
	`9`	`+`
	`10`	`+privatestaticintcalculateWaviness(intnum) {`
	`11`	`+Strings =String.valueOf(num);`
	`12`	`+intn =s.length();`
	`13`	`+if (n <3) {`
	`14`	`+return0;`
	`15`	`+ }`
	`16`	`+intcount =0;`
	`17`	`+for (inti =1;i <n -1;i++) {`
	`18`	`+if (s.charAt(i) >s.charAt(i -1) &&s.charAt(i) >s.charAt(i +1)) {`
	`19`	`+count++;`
	`20`	`+ }`
	`21`	`+if (s.charAt(i) <s.charAt(i -1) &&s.charAt(i) <s.charAt(i +1)) {`
	`22`	`+count++;`
	`23`	`+ }`
	`24`	`+ }`
	`25`	`+returncount;`
	`26`	`+ }`
	`27`	`+}`

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