Python, use the formula of pearson's correlation to calculate between two subjects based on the text file given without using the pearsonr() function given by python

calculate the correlations between two subjects Abid Ahmed Amy Asaad Belal Celia Dahlila Jacob Simon Somnuk Radha Toufik Eugene Ezmir Helmi Ibrahim Indra Ismail Kannan Kelvin 90 70 45 90 87 88 66 70 54 78 65 90 34 76 80 78 78 88 54 77 90 87 76 65 67 77 65 87 45 78 67 98 67 85 78 86 87 89 56 67 88 66 44 44 98 87 56 67 90 87 87 89 99 45 77 56 65 99 76 87