View Compilation Error

177323_0_10181.c: In function `main':
177323_0_10181.c:9: error: `i' undeclared (first use in this function)
177323_0_10181.c:9: error: (Each undeclared identifier is reported only once
177323_0_10181.c:9: error: for each function it appears in.)
177323_0_10181.c:22: error: `j' undeclared (first use in this function)
177323_0_10181.c:26: error: syntax error at end of input