main() { char s[ ] = "man"; int i; for( i=0; s[ i ]; i++) printf( "n%c%c%c%c", s[ i ], *(s+i), *(i+s), i[s] ); }

s[i], *(i+s), *(s+i), i[s] are all different ways of expressing the same idea.Generally array name is the base address for that array. Here s is the base address. i is the index number/displacement from the base address. So, indirecting it with * is same as s[i]. i[s] may be surprising. But in the case of C it is same as s[i].