a cell r c excel sheet represent string colrow wherecol denote column number c cell it represent alphabetical lettersfor example 1st column denote a 2nd b 3rd C onrow row number r cell the rth row represent integer rYou give string s format col1row1col2row2 col1 represent column c1 row1 represent row r1 col2 represent column c2 row2 represent row r2 r1 r2 c1 c2return list cell x y r1 x r2 c1 y c2 the cell represent string format mention sort nondecrease order column row Example 1input s K1L2Output K1K2L1L2ExplanationThe diagram show cell present listthe red arrow denote order cell presentedexample 2input s A1F1Output a1b1c1d1e1f1explanationthe diagram show cell present listthe red arrow denote order cell present Constraintsslength 5A s0 s3 Z1 s1 s4 9s consist uppercase English letter digit