------Input------
77 40
------Answer-----
1,4,9,16,25,36,41,42,43,44,45,46,47,48,50,51,52,53,54,55,56,57,58,59,60,61,62,63,65,66,67,68,69,70,71,72,73,74,75,76,77
------Your output-----
1,1234,456789,910111213141516,16171819202122232425,252627282930313233343536,3637383940414243444546474849505152535455565758596061626364656667686970717273747576