fn main() {
let i1:i32 = -1;
let i2:i32 = -2;
let i3:i32 = -3;
let i4:i32 = -4;
let i5:i32 = -5;
let i6:i32 = -6;
let i7:i32 = -7;
println!("{} in binary is {:b}", i1, i1);
println!("{} in binary is {:b}", i2, i2);
println!("{} in binary is {:b}", i3, i3);
println!("{} in binary is {:b}", i4, i4);
println!("{} in binary is {:b}", i5, i5);
println!("{} in binary is {:b}", i6, i6);
println!("{} in binary is {:b}", i7, i7);
}