Main.cc: In function ‘void z()’:
Main.cc:7:14: error: ‘su’ was not declared in this scope; did you mean ‘sum’?
7 | for(int i=1;su,<=5000;i++)
| ^~
| sum
Main.cc:7:17: error: expected primary-expression before ‘<=’ token
7 | for(int i=1;su,<=5000;i++)
| ^~