/in/foo.c: In function 'main':
/in/foo.c:8:26: warning: left-hand operand of comma expression has no effect [-Wunused-value]
    8 |         for(int j= 1;j<=i,j++){
      |                          ^
/in/foo.c:8:30: error: expected ';' before ')' token
    8 |         for(int j= 1;j<=i,j++){
      |                              ^
      |                              ;