Given Element={9,19,29,39,49,59,69}
9%10=9
19%10=9=>9+1^2=10=>10%10=0
29%10=9==>9+1^2=10==>10%10=0==>9+2^2=13==>13%10=3
39=>9+3^2=18=>18%10=8
49=>9+4^2=25%10=5
59=>9+5^2=34%10=4
69=>9+6^2=45%10=5==>9+7^2=58=>58%10=8=>9+8^2=73%10=3=>9+9^2=90%10=0
Here no where we have location for 69...though for 59 it is 4