Why isn't my code working?

%8 to 15 meters is the range

%Velocity is 0,15,30,45,60,75,90

clc,clear

F = input('Targeted Distance = ');

V_o = input('Velocity at launch = ');

S_o = input('Elevation angle at launch = ');

a=9.81; %Its a given

b=V_o*sind(S_o) %It makes the coding a bit less confusing.

c=0; %Also a given

    fprintf('The targeted distance for the launch is %d meters. \n', F)

    fprintf('The velocity for the launch is %d meters per second. \n', V_o)

    fprintf('The elevation angle for the launch is %d degrees. \n', S_o)

 disp(Q1)